H - Social Science 60,103 Q - Science 26,887 P - Language and Literature 26,176 T - Technology 20,969 R - Medicine 19,160 K - Law 15,430 B - Philosophy, Psychology, Religion 15,086 D - World History 15,066 A - General Works 11,133 N - Fine Arts 10,476 L - Education 9,132 Z - Library Science 8,677 S - Agriculture 7,233 M - Music 6,792 J - Political Science 6,625 G - Geography, Anthropology, Recreation 6,429 F - General American History 5,039 E - United States History 3,970 C - Historical Sciences 3,164 U - Military Science 2,686 V - Naval Science 635 see all ...

Harris Collection of American Poetry and Plays (Brown University) Periodicals 4,523 Gotham Book Mart Collection (University of Pennsylvania) 2,500 United States Bureau of the Census 2,046 Economist Intelligence Unit (Great Britain) 1,941 Adam Matthew Digital (Firm) 1,386 Vale Zines Collection (Beinecke Rare Book and Manuscript Library) 1,223 Edwin and Terry Murray Collection (David M. Rubenstein Rare Book & Manuscript Library) 942 United States Bureau of Labor Statistics 759 United States Joint Publications Research Service 703 Institute of Electrical and Electronics Engineers 702 United States Foreign Broadcast Information Service 612 Julio Mario Santo Domingo Collection 555 National Climatic Data Center (U.S.) 551 Sallie Bingham Center for Women's History and Culture 550 United States Department of Agriculture. Economic Research Service 474 Human Rights Archive (Duke University) 460 United States Weather Bureau 456 Southern Poverty Law Center Intelligence Project Collection 445 United States Bureau of Agricultural Economics 445 Schlesinger Library Zine Collection 435 United States Foreign Agricultural Service 435 American Institute of Physics 434 National Climatic Center 411 JSTOR (Organization) 397 Statistical Office of the European Communities 395 United States World Agricultural Outlook Board 388 Harris Collection of American Poetry and Plays (Brown University) College Literary Periodicals 363 Rosengarten Family Fund 360 American Chemical Society 359 Kirk Collection (Brown University) 353 see all ...

Periodicals 356,138 Electronic journals 40,961 Periodical 30,324 Périodiques 15,518 Statistics 14,174 Périodiques 12,731 History 6,437 periodicals 5,971 Bibliography 5,937 Computer network resources 3,944 Directories 3,741 Little magazines 3,188 Abstracts 2,818 Criticism, interpretation, etc 2,677 Congresses 2,613 Law reviews 2,575 Catalogs 2,375 Zines 2,215 Religious periodicals 2,046 Ressource Internet (Descripteur de forme) 2,040 Conference papers and proceedings 1,861 Fulltext 1,801 Comics (Graphic works) 1,786 Bibliographies 1,766 Internet Resources 1,736 Zeitschrift 1,732 Relief prints 1,649 Reviews 1,602 Comic books, strips, etc 1,536 Indexes 1,533 see all ...

20th century 10,325 1945- 2,629 1900-1999 2,368 19th century 2,121 21st century 2,120 1900 - 1999 2,045 18th century 1,741 Since 1945 1,076 Civil War, 1642-1649 990 1800-1899 873 1945-1989 682 2000-2099 648 1989- 618 1960- 575 1642-1649 520 Commonwealth and Protectorate, 1649-1660 519 1918-1945 444 Early works to 1800 427 Civil War, 1861-1865 424 1918- 384 1603-1800 369 1700-1799 331 1991- 328 1939-1945 265 1649-1660 257 1900-2099 254 1979- 254 1990- 254 17th century 250 20e siècle 246 see all ...

United States 57,360 Great Britain 11,522 Canada 7,123 New York (State) 6,806 India 6,034 California 5,696 Nigeria 4,102 China 3,960 England 3,667 Australia 3,572 Europe 3,528 Massachusetts 3,526 Africa 2,959 Pennsylvania 2,934 Japan 2,908 New York 2,814 Asia 2,427 Philippines 2,347 South Africa 2,333 Illinois 2,026 North Carolina 1,711 Indonesia 1,615 Latin America 1,604 Soviet Union 1,516 États-Unis 1,441 New Jersey 1,437 Ohio 1,369 Middle East 1,314 Ireland 1,294 Connecticut 1,197 see all ...