Library of Congress Classification System
K - Law
| K | Law (General). |
| KD | United Kingdom and Ireland. |
| KE | Canada. |
| KF | United States. |
| KG | Central America, Carribbean. |
| KH | South America. |
| KJ | Europe. |
| K | 1-7720 | Law (General) |
| 1-36 | Periodicals | |
| 37-44 | Bibliography | |
| 46 | Monographic Series | |
| 48 | Encyclopedias | |
| 50-54 | Dictionaries, Words and Phrases | |
| 58 | Maxims, Quotations | |
| 64 | Yearbooks | |
| 68-70 | Directories | |
| 85-88 | Legal Research | |
| 94 | Legal Composition and Draftmanship | |
| 100-103 | Legal Education | |
| 110 | Law Societies, International Bar Associations | |
| 115-129 | The Legal Profession | |
| 133 | Legal Aid, Legal Aid Societies | |
| 140-165 | History of Law | |
| 170 | Biography | |
| 175 | Congresses | |
| 176-177 | Collected Works (nonserial) | |
| 179 | Addresses, Essays, Lectures | |
| 181-184.7 | Miscellany | |
| 190-195 | Primitive Law, Ethnological Jurisprudence | |
| 201-487 | Jurisprudence, Philosophy and Theory of Law | |
| 237-264 | The Concept of Law | |
| 270-274 | Acts and Events | |
| 280-286 | Sources of Law | |
| 288-296 | Interpretation and Application of Law, Lacunae in Law | |
| 300-304 | Classification of Law | |
| 321-474 | Schools of Legal Theory | |
| 325-328 | Historical Jurisprudence | |
| 330-344 | Positivism | |
| 368-380 | Sociology of Law, Sociological Jurisprudence | |
| 400-474 | Natural Law | |
| 486-487 | Relation of Law to Other Topics | |
| 520-5582 | Comparative Law, International Uniform Law | |
| 540-546 | Trials | |
| 583-591 | Legal Systems Compared | |
| 600-619 | Private Law | |
| 605-615 | Unification | |
| 623-968 | Civil Law | |
| 625-709 | Persons | |
| 670-709 | Domestic Relations | |
| 720-792 | Property | |
| 795-798 | Trusts and Trustees | |
| 805-821 | Succession Upon Death | |
| 830-968 | Obligations | |
| 840-917 | Contracts | |
| 920 | Restitution, Quasi Contracts, Unjust Enrichment | |
| 923-968 | Torts | |
| 970 | Compensation to Victims of Crime, Reparation | |
| 1000-1388 | Commercial Law | |
| 1010-1016 | The Merchant, Business Enterprises | |
| 1021-1022 | Commercial Agency | |
| 1024-1132 | Commercial Contracts | |
| 1026-1045 | Sale of Goods | |
| 1054-1065 | Negotiable Instruments | |
| 1066-1088 | Banking | |
| 1100-1104 | Secured Transactions | |
| 1112-1116 | Investments | |
| 1150-1231 | Maritime Law | |
| 1195-1223 | Maritime Social Legislation | |
| 1226-1231 | Marine Insurance | |
| 1241-1287 | Insurance | |
| 1301-1366 | Business Associations | |
| 1370-1388 | Insolvency and Bankruptcy, Creditors' Rights | |
| 1401-1578 | Intellectual Property | |
| 1411-1485 | Copyright | |
| 1500-1578 | Industrial Property | |
| 1700-1970 | Social Legislation | |
| 1701-1841 | Labor Law | |
| 1861-1929 | Social Insurance | |
| 1960-1970 | Public Welfare, Public Assistance | |
| 2100-2385 | Courts, Procedure | |
| 2110-2155 | Court Organization and Procedure | |
| 2201-2385 | Civil Procedure | |
| 2390 | Negotiated Settlement, Compromise | |
| 2400-2405 | Arbitration and Award | |
| 3150 | Public Law | |
| 3154-3367 | Constitutional Law | |
| 3161 | Constitutional History | |
| 3169 | The State | |
| 3171-3179 | Constitutional Principles | |
| 3185-3188 | Structure of Government | |
| 3201-3205 | Foreign Relations | |
| 3224-3278 | Individual and State | |
| 3280-3282 | Church and State | |
| 3285 | Form of Government | |
| 3290-3367 | Organs of Government | |
| 3290-3304 | The People, Election Law | |
| 3310-3329 | The Legislature | |
| 3332-3363 | Heads of State and the Central Government | |
| 3367 | The Judiciary | |
| 3375 | Colonial Law | |
| 3400-3431 | Administrative Law | |
| 3403-3416 | The Administrative Process | |
| 3420-3431 | Administrative Organization | |
| 3440-3460 | Civil Service, Government Officials and Employees | |
| 3476-3558 | Public Property, Public Restraint on Private Property | |
| 3566-3597 | Public Health | |
| 3601-3609 | Medical Legislation | |
| 3615-3617 | Veterinary Laws, Veterinary Hygiene | |
| 3625-3649 | Food, Drugs, Cosmetics | |
| 3651-3654 | Alcohol, Alcoholic Beverages | |
| 3661-3674 | Public Safety | |
| 3700-3705 | Control of Social Activities | |
| 3740-3762 | Education | |
| 3770-3793 | Science and Arts, Research | |
| 3820-3832 | Economic Constitution, Policy, Planning, and Development | |
| 3840-4375 | Regulation of Industry, Trade, and Commerce, Occupational Law | |
| 3842-3862 | Trade Regulations, Control of Trade Practices | |
| 3870-3918 | Primary Production, Extractive Industries | |
| 3941-3974 | Trade and Commerce | |
| 3978-3990 | Public Utilities | |
| 4011-4339 | Transportation and Communication | |
| 4360-4375 | Professions and Occupations | |
| 4430-4675 | Public Finance | |
| 4453-4640 | National Revenue | |
| 4650-4675 | State and Local Finance | |
| 4700-4705 | Government Measures in Time of War, National Emergency or Economic Crisis | |
| 4720-4760 | National Defense, Military Law | |
| 4725-4734 | The Military Establishment, Armed Forces | |
| 4740-4760 | Military Criminal Law and Procedure | |
| 5000-5570 | Criminal Law and Procedure | |
| 5011-5316 | Criminal Law | |
| 5401-5570 | Criminal Procedure | |
| 7000-7720 | Conflict of Laws | |
| 7051-7054 | International Unification, Approximation, and Harmonization | |
| 7060-7081 | Choice of Law | |
| 7085 | Retroactive Law, Intertemporal Law | |
| 7090 | Juristic Acts | |
| 7120-7197 | Persons | |
| 7120-7148 | Status, Capacity and Disability | |
| 7125-7140 | Natural Persons | |
| 7145-7148 | Juristic Persons, Associations | |
| 7155-7197 | Domestic Relations, Family Law | |
| 7157-7178 | Marriage, Husband and Wife | |
| 7181-7192 | Parent and Child | |
| 7197 | Guardian and Ward | |
| 7200-7222 | Property | |
| 7230-7245 | Succession Upon Death | |
| 7260-7335 | Obligations | |
| 7265-7305 | Contracts | |
| 7310 | Restitution, Quasi Contracts, Unjust Enrichment | |
| 7315-7335 | Torts | |
| 7340-7512 | Commercial Law | |
| 7350-7444 | Commercial Contracts | |
| 7449-7460 | Maritime Law | |
| 7470 | Insurance | |
| 7485-7495 | Business Associations, Business Corporations | |
| 7510-7512 | Insolvency and Bankruptcy, Creditors' Rights | |
| 7550-7582 | Intellectual Property | |
| 7555-7557 | Copyright | |
| 7570-7582 | Industrial Property | |
| 7585-7595 | Social Legislation | |
| 7616-7686 | Civil Procedure, International Civil Procedure | |
| 7690 | Arbitration and Award | |
| KD | 51-9500 | Law of England and Wales |
| 8850-9312 | Local Laws of England | |
| 9320-9355 | Local Laws of Wales | |
| 9400-9500 | Wales | |
| KDC | 51-990 | Scotland |
| KDE | 21-580 | Northern Ireland |
| KDG | 26-540 | Isle of Man, Channel Islands |
| KDK | 21-1950 | Ireland (Eire) |
| KDZ | 0-4999 | America. North America. |
| 1100-1199 | Organization of American States | |
| KE | 1-9450 | Law of Canda: Federal Law, Common and Collective Provincial Law |
| KEA | 0-599 | Alberta |
| KEB | 0-599 | British Columbia |
| KEM | 0-599 | Manitoba |
| KEN | 0-599 | New Brunswick |
| 1200-1799 | Newfoundland | |
| 5400-5999 | Northwest Territories | |
| 7400-7999 | Nova Scotia | |
| KEO | 0-1199 | Ontario |
| KEP | 0-599 | Prince Edward Island |
| KEQ | 0-1199 | Quebec |
| KES | 0-599 | Saskatchewan |
| KEY | 0-599 | Yukon Territory |
| KEZ | 0-9999 | Individual Cities, A-Z |
| KF | 1-9827 | Law of the United States: Federal Law, Common and Collective State Law |
| 1-8 | Bibliography | |
| 16-49 | Legislative Documents | |
| 50-90 | Statutes and Administrative Regulations | |
| 101-153 | Law Reports and Related Materials | |
| 154 | Encyclopedias | |
| 156 | Law Dictionaries, Words and Phrases | |
| 165 | Uniform State Laws | |
| 170 | Form Books | |
| 178 | Yearbooks | |
| 180-185 | Judicial Statistics | |
| 190-195 | Directories | |
| 200 | Society and Bar Association Journals and Yearbooks | |
| 202 | Congresses | |
| 204-224 | Collections | |
| 209 | Monographic Series | |
| 210-211 | Several Authors, Festschriften | |
| 213 | Individual Authors | |
| 220-224 | Criminal Trials | |
| 228 | Records and Briefs of Individual Civil Suits | |
| 240-246 | Legal Research, Legal Bibliography | |
| 250-251 | Legal Composition and Draftsmanship | |
| 255 | Law Reporting | |
| 260 | Cases and Materials | |
| 262-292 | Legal Education | |
| 294 | Law Societies, A-Z | |
| 297-334 | The Legal Profession | |
| 336-337 | Legal Aid, Legal Aid Societies | |
| 338 | Lawyer Referral Services | |
| 350-374 | History | |
| 379-382 | Jurisprudence and Philosophy of American Law | |
| 384 | Criticism, Legal Reform, General Administration of Justice | |
| 385-391 | General and Comprehensive Works | |
| 394-395 | Common Law in the United States | |
| 398-400 | Equity | |
| 410-418 | Conflict of Laws | |
| 420 | Retroactive Law, Intertemporal Law | |
| 425-435 | General Principles and Concepts | |
| 445-450 | Concepts Applying to Several Branches of Law | |
| 465-553 | Persons | |
| 465-485 | General, Status, Capacity | |
| 501-553 | Domestic Relations, Family Law | |
| 560-720 | Property | |
| 560-562 | General, Ownership | |
| 566-698 | Real Property, Land Law | |
| 701-720 | Personal Property | |
| 726-745 | Trusts and Trustees | |
| 746-750 | Estate Planning | |
| 753-780 | Succession Upon Death | |
| 801-1241 | Contracts | |
| 801 | General and Comprehensive Works | |
| 807-839 | General Principles | |
| 841-869 | Government Contracts | |
| 871-1241 | Particular Contracts | |
| 871-890 | Comprehensive, Commercial Law, Mercantile Transactions | |
| 894 | Contract of Service, Master and Servant | |
| 898-905 | Contract for Work and Labor | |
| 911-935 | Sale of Goods | |
| 939-951 | Contracts Involving Bailments | |
| 956-962 | Negotiable Instruments | |
| 966-1032 | Banking | |
| 1033 | Foreign Exchange Brokerage | |
| 1035-1040 | Loan of Money | |
| 1045 | Suretyship, Guaranty | |
| 1046-1062 | Secured Transactions | |
| 1066-1083 | Marketing of Securities, Investments, Stock Exchange Transactions | |
| 1085-1086 | Commodity Exchanges | |
| 1091-1137 | Carriers, Carriage of Goods and Passengers | |
| 1091 | General, Liability | |
| 1092 | Carriage by Land | |
| 1093 | Carriage by Air | |
| 1096-1114 | Carriage by Sea, Maritime Commercial Law, Admiralty | |
| 1121-1132 | Maritime Labor Law | |
| 1135-1137 | Marine Insurance | |
| 1146-1238 | Insurance | |
| 1241 | Aleatory Contracts | |
| 1244 | Restitution, Quasi Contracts, Unjust Enrichment | |
| 1246-1327 | Torts | |
| 1328 | Compensation to Victims of Crime | |
| 1341-1348 | Agency | |
| 1355-1480 | Associations | |
| 1355-1395 | General | |
| 1361-1380 | Unincorporated Associations | |
| 1361-1362 | General | |
| 1365-1380 | Business Associations, Partnership | |
| 1384-1480 | Corporations, Juristic Persons | |
| 1384-1386 | General | |
| 1388-1389 | Nonprofit Corporations | |
| 1396-1477 | Business Corporations | |
| 1480 | Government-Owned Corporations and Business Organizations | |
| 1501-1548 | Insolvency and Bankruptcy, Creditors' Rights | |
| 1600-2940 | Regulation of Industry, Trade, and Commerce, Occupational Law | |
| 1600 | General and Comprehensive | |
| 1601-1666 | Trade Regulation, Control of Trade Practices | |
| 1601-1611 | General, Unfair Trade Practices | |
| 1614-1617 | Advertising | |
| 1619-1620 | Labeling | |
| 1624-1625 | Restraint of Trade | |
| 1626-1629 | Price Fixing | |
| 1631-1657 | Monopolies, Antitrust Laws | |
| 1659-1659.1 | Small Business | |
| 1661 | Trade Associations | |
| 1663 | State Jurisdiction, Trade Barriers | |
| 1665-1666 | Weights and Measures | |
| 1681-1873 | Primary Production, Extractive Industries | |
| 1681-1750 | Agriculture, Forestry | |
| 1770-1773 | Fishery | |
| 1801-1873 | Mining, Quarrying, Oil and Gas | |
| 1875-1893 | Manufacturing Industries | |
| 1900-1944 | Food Processing Industries | |
| 1950 | Construction and Building Industry | |
| 1970-2057 | Trade and Commerce | |
| 2076-2140 | Public Utilities | |
| 2161-2849 | Transportation and Communication | |
| 2901-2940 | The Professions | |
| 2971-3192 | Intellectual Property | |
| 2971-2980 | General | |
| 2986-3080 | Copyright | |
| 3084 | Author and Publisher | |
| 3086 | Design Protection | |
| 3091-3192 | Patent Law and Trademarks | |
| 3195-3198 | Unfair Competition | |
| 3300-3750 | Social Legislation | |
| 3300 | General | |
| 3301-3580 | Labor Law | |
| 3600-3686 | Social Insurance | |
| 3720-3745 | Public Welfare, Public Assistance | |
| 3750 | Disaster Relief | |
| 3775-3813 | Public Health, Sanitation | |
| 3821-3829 | Medical Legislation | |
| 3832 | Eugenics, Sterilization | |
| 3835-3838 | Veterinary Law, Veterinary Hygiene | |
| 3841-3845 | Prevention of Cruelty to Animals | |
| 3861-3894 | Food, Drugs, Cosmetics | |
| 3901-3925 | Alcohol, Alcoholic Beverages, Prohibition | |
| 3941-3977 | Public Safety | |
| 3941-3942 | Weapons, Firearms, Munitions | |
| 3945-3965 | Hazardous Articles and Processes | |
| 3970 | Accident Control | |
| 3975-3977 | Fire Prevention and Control, Explosives | |
| 3985-3995 | Control of Social Activities | |
| 3985 | General | |
| 3987 | Amusements | |
| 3989 | Sports, Prizefighting | |
| 3992 | Lotteries | |
| 3995 | Other | |
| 4101-4258 | Education | |
| 4270-4330 | Science and the Arts, Research | |
| 4270 | General | |
| 4280 | Particular Branches and Subjects, A-Z | |
| 4288-4302 | The Arts | |
| 4305 | Museums and Galleries | |
| 4310-4312 | Historical Buildings and Monuments | |
| 4315-4319 | Libraries | |
| 4325 | Archives, Historical Documents | |
| 4330 | Educational, Scientific, and Cultural Exchanges | |
| 4501-5130 | Constitutional Law | |
| 4501-4515 | Sources | |
| 4520 | Works on the Legislative History of the Constitution | |
| 4525-4528 | Texts of the Constitution | |
| 4530 | State Constitutions (Collections) | |
| 4541-4545 | Constitutional History of the United States | |
| 4546-4554 | General Works (History, Theory, and Interpretation of Constitutional Law) | |
| 4555 | Amending Process | |
| 4558 | Particular Amendments | |
| 4565-4578 | Separation of Powers, Delegation of Powers | |
| 4581-4583 | Sources and Relationships of Law | |
| 4600-4629 | Structure of Government, Federal and State Relations, Jurisdiction | |
| 4635 | National Territory, Noncontiguous Territories | |
| 4650-4694 | Foreign Relations | |
| 4695 | Public Policy, Police Power | |
| 4700-4856 | Individual and State | |
| 4700-4720 | Nationality and Citizenship | |
| 4741-4783 | Civil and Political Rights and Liberties | |
| 4788 | Political Parties | |
| 4791-4856 | Control of Individuals | |
| 4791 | Identification | |
| 4794-4794.5 | Passports | |
| 4800-4848 | Aliens | |
| 4850-4856 | Internal Security | |
| 4865-4869 | Church and State | |
| 4881-5130 | Organs of the Government | |
| 4881-4921 | The People, Election Law | |
| 4930-5005 | The Legislature | |
| 5050-5125 | The Executive Branch | |
| 5130 | The Judiciary, Judicial Power | |
| 5150 | National Emblem, Flag, Seal, Seat of Government, National Anthem | |
| 5152 | Patriotic Customs and Observances | |
| 5153-5154 | Decorations of Honor, Awards | |
| 5155-5156 | Commemorative Medals | |
| 5300-5332 | Local Government | |
| 5336-5398 | Civil Service, Government Officials and Employees | |
| 5399 | Police and Power of the Police | |
| 5401-5425 | Administrative Organization and Procedure | |
| KFA | 0-599 | Individual States: Alabama |
| 1200-1799 | Alaska | |
| 2400-2999 | Arizona | |
| 3600-4199 | Arkansas | |
| KFC | 0-1199 | California |
| 1800-2399 | Colorado | |
| 3600-4199 | Conneticut | |
| KFD | 0-599 | Delware |
| 1200-1799 | District of Columbia | |
| KFF | 0-599 | Florida |
| KFG | 0-599 | Georgia |
| KFH | 0-599 | Hawaii |
| KFI | 0-599 | Idaho |
| 1200-1799 | Illinois | |
| 3000-3599 | Indiana | |
| 4200-4799 | Iowa | |
| KFK | 0-599 | Kansas |
| 1200-1799 | Kentucky | |
| KFL | 0-599 | Louisiana |
| KFM | 0-599 | Maine |
| 1200-1799 | Maryland | |
| 2400-2999 | Massachusetts | |
| 4200-4799 | Michigan | |
| 5400-5999 | Minnesota | |
| 6600-7199 | Mississippi | |
| 7800-8399 | Missouri | |
| 9000-9599 | Montana | |
| KFN | 0-599 | Nebraska |
| 600-1199 | Nevada | |
| 1200-1799 | New Hampshire | |
| 1800-2399 | New Jersey | |
| 3600-4199 | New Mexico | |
| 5000-6199 | New York | |
| 7400-7999 | North Carolina | |
| 8600-9199 | North Dakota | |
| KFO | 0-599 | Ohio |
| 1200-1799 | Oklahoma | |
| 2400-2999 | Oregon | |
| KFP | 0-599 | Pennsylvania |
| KFR | 0-599 | Rhode Island |
| KFS | 1800-2399 | South Carolina |
| 3000-3599 | South Dakota | |
| KFT | 0-599 | Tennessee |
| 1200-1799 | Texas | |
| KFU | 0-599 | Utah |
| KFV | 0-599 | Vermont |
| 2400-2999 | Virginia | |
| KFW | 0-599 | Washington |
| 1200-1799 | West Virginia | |
| 2400-2999 | Wisonsin | |
| 4200-4799 | Wyoming | |
| KFX | 0-9999 | Individual Cities, A-Z |
| KFZ | 1800-2399 | Northwest Territory |
| 8600-9199 | Confederate States of America | |
| KG | 0-999 | Latin America (General) |
| 3000-3999 | Mexico and Central America (General) | |
| KGA | 0-9000 | Belize |
| KGB | 0-9000 | Costa Rica |
| KGC | 0-9800 | El Salvador |
| KGD | 0-9900 | Guatemala |
| KGE | 0-9990 | Honduras |
| KGF | 0-9900 | Mexico |
| KGG | 0-9800 | Nicaragua |
| KGH | 0-8000 | Panama |
| 9000-9499 | Panama Canal Zone | |
| KGJ | 0-999 | West Indies, Caribbean Area (General) |
| 7000-7499 | Anguilla | |
| KGK | 0-499 | Antigua and Barbuda |
| 1000-1499 | Aruba | |
| KGL | 0-499 | Bahamas |
| 1000-1499 | Barbados | |
| 2000-2499 | Bonaire | |
| 3000-3499 | British Leeward Islands | |
| 4000-4499 | British Virgin Islands | |
| 5000-5999 | British West Indies | |
| 6000-6499 | British Windward Islands | |
| KGM | 0-499 | Cayman Islands |
| KGN | 0-9800 | Cuba |
| KGP | 0-499 | Curacao |
| 2000-2499 | Dominica | |
| KGQ | 0-9800 | Dominican Republic |
| KGR | 0-499 | Dutch Leeward Islands (General) |
| 1000-1499 | Dutch West Indies (Netherlands Antilles) | |
| 2000-2499 | Dutch Windward Islands (General) | |
| 3000-3499 | French West Indies (General) | |
| 4000-4499 | Grenada | |
| 5000-5499 | Guadeloupe | |
| KGS | 0-9000 | Haiti |
| KGT | 0-499 | Jamaica |
| 1000-1499 | Martinique | |
| 2000-2499 | Montserrat | |
| KGU | 0-499 | Navassa Islands |
| KGV | 0-8200 | Puerto Rico |
| KGW | 0-499 | Saba |
| 2000-2499 | Saint Christopher (Saint Kitts), Nevis, and Anguilla | |
| 3000-3499 | Saint Lucia | |
| 5000-5499 | Saint Vincent and the Grenadines | |
| 7000-7499 | Sint Eustatius | |
| 8000-8499 | Sint Martin | |
| KGX | 0-499 | Trinidad and Tobago |
| KGY | 0-499 | Turks and Caicos Islands |
| KGZ | 0-499 | Virgin Islands of the United States |
| KH | 0-999 | South America (General) |
| KHA | 0-9800 | Argentina |
| KHC | 0-8200 | Bolivia |
| KHD | 0-9900 | Brazil |
| KHF | 0-9800 | Chile |
| KHH | 0-9900 | Columbia |
| KHK | 0-9900 | Equador |
| KHL | 0-9000 | Falkland Islands |
| KHM | 0-9000 | French Guiana |
| KHN | 0-9000 | Guyana |
| KHP | 0-9700 | Paraguay |
| KHQ | 0-9800 | Peru |
| KHS | 0-9000 | Surinam |
| KHU | 0-9800 | Uruguay |
| KHW | 0-9900 | Venezuela |
| KJ | 2-1040 | Europe: History of Law |
| 160-1040 | Germanic Law | |
| KJA | 2-3660 | Roman Law |
| KJC | 2-9799 | Regional Comparative and Uniform Law |
| KJE | 5-7975 | Regional Organization and Integration, Comparative Law |
| KJG | 0-4999 | Albania |
| KJH | 0-499 | Andorra |
| KJJ | 0-4999 | Austria |
| KJK | 0-4999 | Belgium |
| KJM | 0-4999 | Bulgaria |
| KJN | 0-499 | Cyprus |
| KJP | 0-4999 | Czechoslovakia |
| KJR | 0-4999 | Denmark |
| KJT | 0-4999 | Finland |
| KJV | 2-9158 | France: Mational Laws |
| KJW | 51-4360 | France: Individual Regions, Provinces, Departments, etc. |
| 5201-9600 | Individual Cities | |
| KK | 2-9799.3 | Germany and West Germany |
| KKA | 7-9796 | East Germany |
| KKB- KKC | Germany: Individual States, Provinces, Cities | |
| KKE | 0-4999 | Greece |
| KKF | 0-4999 | Hungary |
| KKG | 0-499 | Iceland |
| KKH | 0-4999 | Italy |
| KKJ | 0-499 | Liechtenstein |
| KKK | 0-499 | Luxembourg |
| 1000-1499 | Malta | |
| KKL | 0-499 | Monaco |
| KKM | 0-4999 | Netherlands |
| KKN | 0-4999 | Norway |
| KKP | 0-4999 | Poland |
| KKQ | 0-4999 | Portugal |
| KKR | 0-4999 | Romania |
| KKS | 0-499 | San Marino |
| KKT | 0-4999 | Spain |
| KKW | 0-4999 | Switzerland |
| KKX | 0-4999 | Turkey |
| KKY | 0-490 | Vatican City |
| KKZ | 0-4999 | Yugoslavia |
To the Library of Congress Classification index
