P - Language and Literature 679 Q - Science 599 T - Technology 590 H - Social Science 506 N - Fine Arts 505 D - World History 252 R - Medicine 182 B - Philosophy, Psychology, Religion 165 G - Geography, Anthropology, Recreation 118 L - Education 118 K - Law 113 Z - Library Science 101 M - Music 97 S - Agriculture 84 J - Political Science 76 E - United States History 72 C - Historical Sciences 64 F - General American History 51 A - General Works 41 U - Military Science 40 V - Naval Science 9 see all ...

Institute of Electrical and Electronics Engineers 366 IEEE Computer Society 138 International Labour Conference 60 International Labour Office 59 Association for Computing Machinery 53 IEEE Xplore (Online service) 44 Instrument Society of America 26 ACM Digital Library 23 American Society for Testing and Materials 23 International Conference on Education 23 Josiah Macy, Jr. Foundation 22 IEEE Electron Devices Society 20 ASTM International 18 Seminar on the Acquisition of Latin American Library Materials 18 Biennale di Venezia 17 IEEE Communications Society 17 Faculté des sciences de Paris 16 Gotham Book Mart Collection (University of Pennsylvania) 16 Unesco 16 Fire Standards and Safety Gaithersburg, Md 15 IEEE Circuits and Systems Society 14 Institut Henri Poincaré 14 Republican National Convention 14 FESPACO (Festival) 13 Internationale Filmfestspiele Berlin 13 World Bank 13 Inter-American Conference on Social Security 12 National Science Foundation (U.S.) 12 Rosengarten Family Fund 12 SIGGRAPH 12 see all ...

English 4,553 French 535 German 381 Spanish 374 Russian 217 Italian 153 Portuguese 98 Chinese 93 Japanese 88 Multiple 39 Korean 38 Ukrainian 36 Hebrew 35 Polish 28 Arabic 27 Dutch 27 Turkish 23 Indonesian 20 Catalan 16 Bulgarian 14 Czech 14 Greek 13 Croatian 11 Norwegian 9 Swedish 9 Yiddish 9 Bengali 7 Latin 7 Persian 7 Hungarian 6 see all ...

20th century 309 21st century 201 2000-2099 62 1900-1999 59 1900-2099 32 19th century 30 1900 - 1999 27 1945- 22 Civil War, 1861-1865 21 1564-1616 18 2000 - 2099 13 Since 1945 13 16th century 11 Early modern and Elizabethan, 1500-1600 10 1756-1791 8 Renaissance, 1450-1600 8 17th century 7 1861-1865 6 18th century 6 1900 - 2099 6 20e siècle 6 1799-1837 5 1813-1883 5 1864 5 1918- 5 1945-1989 5 1961- 4 1961-1971 4 1961-1991 4 1961-1994 4 see all ...

United States 510 Latin America 81 China 71 Germany 67 France 64 Brazil 63 New York (State) 62 Russia (Federation) 62 Great Britain 59 India 58 Japan 56 Africa 54 Italy 54 Europe 52 California 48 Canada 40 Spain 39 Asia 38 Developing countries 33 Mexico 32 Massachusetts 29 Argentina 26 Austria 26 New York 26 Korea (South) 25 Israel 24 England 23 San Francisco 23 South Africa 23 Antarctica 20 see all ...