Serial 331,707 Journal 302,297 Government Document 74,856 Book 18,063 Electronic 12,973 Newspaper 5,640 Conference Proceeding 2,569 Kit 893 Article 506 Unknown 380 Reference Material 379 Map 130 Thesis 108 Manuscript 82 Book Chapter 63 Audio 23 Photo 20 Musical Score 17 Physical Object 13 see all ...

H - Social Science 148,296 D - World History 51,338 K - Law 25,721 P - Language and Literature 20,556 J - Political Science 16,212 L - Education 15,591 A - General Works 14,450 Z - Library Science 13,212 N - Fine Arts 13,090 T - Technology 13,086 F - General American History 13,069 Q - Science 13,013 B - Philosophy, Psychology, Religion 12,572 S - Agriculture 11,650 R - Medicine 10,392 G - Geography, Anthropology, Recreation 8,240 M - Music 6,405 E - United States History 5,324 C - Historical Sciences 3,961 U - Military Science 3,881 V - Naval Science 765 see all ...

Federal Financial Institutions Examination Council (U.S.) 6,717 United States Bureau of Labor Statistics 5,362 Datamonitor (Firm) 4,521 United States Bureau of the Census 4,454 Economist Intelligence Unit (Great Britain) 2,687 Adam Matthew Digital (Firm) 1,966 United States Internal Revenue Service 1,963 Mortgage Insurance Companies of America 1,904 Statistical Office of the European Communities 1,306 United States Department of Agriculture. Economic Research Service 1,141 Organisation for Economic Co-operation and Development 1,067 United States Social Security Administration 1,006 National Climatic Center 995 National Climatic Data Center (U.S.) 982 Gotham Book Mart Collection (University of Pennsylvania) 966 Germany (West) Statistisches Bundesamt 950 Geological Survey (U.S.) 867 Harris Collection of American Poetry and Plays (Brown University) Periodicals 863 United States Bureau of Mines 787 International Monetary Fund 782 United States Joint Publications Research Service 714 United States Agricultural Research Service 671 United States Foreign Broadcast Information Service 650 Australian Bureau of Statistics 627 Instituto Nacional de Estadística, Geografía e Informática (Mexico) 589 United States World Agricultural Outlook Board 582 National Center for Education Statistics 573 United States Crop Reporting Board 573 Instituto Nacional de Estadística, Geografía e Informática (Mexico) 557 Geological Survey (U.S.) Water Resources Division 508 see all ...

English 404,811 Spanish 41,148 French 39,867 Chinese 35,204 German 24,874 Hebrew 21,602 Russian 21,469 Japanese 14,344 Indonesian 12,349 Portuguese 9,632 Italian 9,188 Arabic 8,527 Korean 5,491 Polish 4,531 Dutch 4,437 Yiddish 4,302 Turkish 3,897 Persian 3,358 Ukrainian 3,166 Multiple 2,478 Czech 2,327 Thai 2,111 Greek 1,983 Swedish 1,859 Romanian 1,803 Danish 1,770 Hungarian 1,731 Croatian 1,623 Vietnamese 1,431 Norwegian 1,198 see all ...

20th century 11,828 1945- 5,882 19th century 3,277 1900-1999 3,253 21st century 2,861 18th century 2,621 Since 1945 2,343 1991- 1,525 1900 - 1999 1,445 1960- 1,261 1989- 1,185 Civil War, 1642-1649 1,152 2000-2099 966 1945-1989 958 Early works to 1800 885 1918-1945 848 1975- 837 Revolution, 1789-1799 787 1800-1899 780 1980- 725 1918- 719 1976- 709 Civil War, 1861-1865 692 1642-1649 649 1976-2000 613 1979- 608 1990- 595 Since 1991 588 1912-1949 586 1949- 582 see all ...