Journal 356,138 Serial 290,223 Government Document 83,744 Electronic 17,932 Book 17,764 Conference Proceeding 4,548 Newspaper 4,506 Kit 890 Reference Material 628 Article 479 Unknown 410 Map 134 Thesis 100 Manuscript 93 Book Chapter 68 Audio 35 Photo 20 Musical Score 18 Physical Object 16 see all ...

H - Social Science 129,364 Q - Science 36,928 P - Language and Literature 33,829 T - Technology 30,837 R - Medicine 25,818 K - Law 23,304 D - World History 23,017 B - Philosophy, Psychology, Religion 20,299 L - Education 16,273 N - Fine Arts 15,224 Z - Library Science 15,109 J - Political Science 13,900 S - Agriculture 12,666 A - General Works 12,268 G - Geography, Anthropology, Recreation 10,428 M - Music 8,581 F - General American History 8,329 E - United States History 6,291 C - Historical Sciences 4,700 U - Military Science 4,689 V - Naval Science 1,244 see all ...

Datamonitor (Firm) 6,942 Federal Financial Institutions Examination Council (U.S.) 6,719 United States Bureau of Labor Statistics 5,408 United States Bureau of the Census 4,603 Harris Collection of American Poetry and Plays (Brown University) Periodicals 4,147 Adam Matthew Digital (Firm) 4,146 Gotham Book Mart Collection (University of Pennsylvania) 3,107 Economist Intelligence Unit (Great Britain) 2,758 United States Internal Revenue Service 1,931 Mortgage Insurance Companies of America 1,904 Organisation for Economic Co-operation and Development 1,499 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) 1,141 United States Agricultural Research Service 1,103 Geological Survey (U.S.) 1,068 Statistical Office of the European Communities 1,052 Institute of Electrical and Electronics Engineers 1,028 National Climatic Center 1,005 National Climatic Data Center (U.S.) 1,004 Edwin and Terry Murray Collection (David M. Rubenstein Rare Book & Manuscript Library) 982 International Monetary Fund 978 United States Joint Publications Research Service 859 United States Foreign Broadcast Information Service 779 Sallie Bingham Center for Women's History and Culture 677 United States World Agricultural Outlook Board 677 National Science Foundation (U.S.) 668 Julio Mario Santo Domingo Collection 661 Australian Bureau of Statistics 631 United States Foreign Agricultural Service 593 see all ...

20th century 13,914 1945- 3,992 1900-1999 3,289 21st century 3,163 19th century 3,002 1900 - 1999 2,742 18th century 2,426 Since 1945 1,695 Civil War, 1642-1649 1,149 1800-1899 1,065 2000-2099 1,009 1945-1989 923 1989- 894 1960- 866 Civil War, 1861-1865 689 Early works to 1800 667 1991- 663 1642-1649 648 1918-1945 585 Commonwealth and Protectorate, 1649-1660 560 1700-1799 471 1918- 466 1990- 464 1947- 439 1603-1800 411 17th century 389 1979- 386 20e siècle 385 1900-2099 378 1939-1945 373 see all ...

United States 114,477 Great Britain 17,549 New York (State) 14,388 Canada 13,540 India 11,427 California 10,953 Massachusetts 6,949 Australia 6,271 Europe 6,269 Nigeria 6,105 England 6,078 China 6,045 Pennsylvania 5,233 New York 5,227 Japan 4,897 North Carolina 4,274 Illinois 4,256 Africa 4,231 South Africa 4,109 Philippines 3,913 Asia 3,696 New Jersey 3,002 Texas 2,817 Ohio 2,701 Indonesia 2,642 Israel 2,595 Connecticut 2,422 Michigan 2,311 Latin America 2,244 Developing countries 2,171 see all ...