Revista 560,079 Publicació Periòdica 441,825 Document de govern 84,617 Llibre 31,082 Electrònic 20,734 Diari 6,460 Actes de congresos 5,889 Paquet 1,292 Material de referència 711 Article 640 Desconegut 565 Thesis 182 Mapa 142 Manuscrit 116 Capítol de llibre 105 Audio 49 Partitura 41 Foto 31 Objecte físic 16 veure tots ...

H - Ciències Socials 180,765 P - Filología i Literatura 65,677 D - Història mundial 57,288 Q - Ciència 47,983 T - Tecnologia 37,121 B - Filosofia, Psicologia, Religió 33,670 R - Medicina 30,938 K - Dret 30,020 A - Treballs generalss 25,764 N - Arts 24,688 Z - Biblioteconomia i Documentació 24,116 L - Educació 22,732 J - Ciències Polítiques 21,067 S - Agricultura 16,432 G - Geography, Anthropology, Recreation 15,281 F - Història general d'Amèrica 13,834 M - Música 13,539 C - Ciències Históriques 7,069 E - Història d'Estats Units 7,060 U - Ciència Militar 6,280 V - Ciència Naval 1,595 veure tots ...

Datamonitor (Firm) 6,944 Federal Financial Institutions Examination Council (U.S.) 6,719 United States Bureau of Labor Statistics 5,416 United States Bureau of the Census 4,609 Adam Matthew Digital (Firm) 4,241 Harris Collection of American Poetry and Plays (Brown University) Periodicals 4,196 Gotham Book Mart Collection (University of Pennsylvania) 3,237 Economist Intelligence Unit (Great Britain) 2,759 United States Internal Revenue Service 1,985 Mortgage Insurance Companies of America 1,904 Organisation for Economic Co-operation and Development 1,565 Statistical Office of the European Communities 1,330 United States Bureau of Mines 1,230 United States Department of Agriculture. Economic Research Service 1,209 Vale Zines Collection (Beinecke Rare Book and Manuscript Library) 1,156 United States Agricultural Research Service 1,103 Geological Survey (U.S.) 1,068 Institute of Electrical and Electronics Engineers 1,035 Julio Mario Santo Domingo Collection 1,027 United States Social Security Administration 1,022 National Climatic Center 1,005 National Climatic Data Center (U.S.) 1,004 International Monetary Fund 988 Edwin and Terry Murray Collection (David M. Rubenstein Rare Book & Manuscript Library) 982 Germany (West) Statistisches Bundesamt 981 United States Joint Publications Research Service 859 United States Foreign Broadcast Information Service 779 Centre national de la recherche scientifique (France) 722 Rosengarten Family Fund 712 Sallie Bingham Center for Women's History and Culture 703 veure tots ...

English 674,140 French 70,572 German 55,157 Spanish 54,186 Chinese 49,271 Russian 33,447 Hebrew 25,902 Japanese 21,356 Italian 18,418 Indonesian 13,862 Portuguese 13,126 Arabic 10,719 Korean 7,258 Polish 6,944 Dutch 6,878 Multiple 5,254 Yiddish 4,958 Turkish 4,860 Ukrainian 4,609 Persian 4,278 Czech 3,876 Swedish 3,037 Greek 2,950 Romanian 2,939 Danish 2,591 Hungarian 2,484 Thai 2,334 Croatian 2,320 Vietnamese 1,849 Urdu 1,733 veure tots ...

20th century 28,569 1900-1999 7,261 1945- 6,628 21st century 6,000 19th century 5,243 1900 - 1999 4,685 18th century 3,333 Since 1945 2,634 2000-2099 1,933 1800-1899 1,574 1991- 1,529 1945-1989 1,478 1989- 1,418 1960- 1,272 Civil War, 1642-1649 1,152 Early works to 1800 1,069 1918-1945 905 1975- 850 Revolution, 1789-1799 788 1990- 774 1918- 766 1980- 725 1976- 711 1700-1799 693 Civil War, 1861-1865 692 20e siècle 668 1900-2099 658 1642-1649 649 1939-1945 625 1976-2000 613 veure tots ...

United States 117,863 China 31,710 Israel 22,342 Great Britain 18,806 Japan 15,673 New York (State) 15,008 Canada 14,322 Indonesia 14,102 France 12,828 India 12,367 Germany 12,072 California 11,178 Europe 8,821 Russia (Federation) 8,034 Soviet Union 7,979 Italy 7,315 Argentina 7,040 Massachusetts 7,016 Brazil 6,797 England 6,531 Australia 6,387 Mexico 6,218 Nigeria 6,145 Latin America 6,068 Poland 5,756 New York 5,700 Africa 5,601 Pennsylvania 5,359 Spain 5,291 Turkey 5,122 veure tots ...