H - Social Science 60,164 Q - Science 26,915 P - Language and Literature 26,219 T - Technology 20,981 R - Medicine 19,171 K - Law 15,433 B - Philosophy, Psychology, Religion 15,101 D - World History 15,079 A - General Works 11,144 N - Fine Arts 10,481 L - Education 9,127 Z - Library Science 8,684 S - Agriculture 7,238 M - Music 6,790 J - Political Science 6,638 G - Geography, Anthropology, Recreation 6,429 F - General American History 5,049 E - United States History 3,974 C - Historical Sciences 3,190 U - Military Science 2,687 V - Naval Science 638 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 2,047 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) 954 United States Bureau of Labor Statistics 760 Institute of Electrical and Electronics Engineers 732 United States Joint Publications Research Service 703 United States Foreign Broadcast Information Service 612 Julio Mario Santo Domingo Collection 555 Sallie Bingham Center for Women's History and Culture 553 National Climatic Data Center (U.S.) 551 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 436 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 American Chemical Society 360 Rosengarten Family Fund 360 Kirk Collection (Brown University) 353 see all ...

Periodicals 356,496 Electronic journals 46,903 Periodical 30,148 Périodiques 15,390 Statistics 14,176 Périodiques 12,747 periodicals 6,562 History 6,459 Bibliography 5,942 Computer network resources 3,948 Directories 3,740 Little magazines 3,203 Abstracts 2,824 Criticism, interpretation, etc 2,682 Congresses 2,655 Law reviews 2,578 Catalogs 2,400 Zines 2,223 Religious periodicals 2,046 Ressource Internet (Descripteur de forme) 2,043 Conference papers and proceedings 1,901 Comics (Graphic works) 1,810 Fulltext 1,804 Bibliographies 1,771 Zeitschrift 1,742 Internet Resources 1,740 Relief prints 1,649 Reviews 1,598 Comic books, strips, etc 1,556 Indexes 1,535 see all ...

20th century 10,352 1945- 2,630 1900-1999 2,382 21st century 2,128 19th century 2,124 1900 - 1999 2,047 18th century 1,743 Since 1945 1,078 Civil War, 1642-1649 990 1800-1899 875 1945-1989 684 2000-2099 650 1989- 618 1960- 575 1642-1649 520 Commonwealth and Protectorate, 1649-1660 519 1918-1945 447 Early works to 1800 427 Civil War, 1861-1865 424 1918- 384 1603-1800 369 1700-1799 330 1991- 327 1939-1945 266 1649-1660 257 1900-2099 255 1979- 254 1990- 254 17th century 250 1980- 244 see all ...

United States 57,390 Great Britain 11,534 Canada 7,132 New York (State) 6,815 India 6,038 California 5,700 Nigeria 4,101 China 3,961 England 3,672 Australia 3,587 Massachusetts 3,532 Europe 3,527 Africa 2,961 Pennsylvania 2,939 Japan 2,910 New York 2,817 Asia 2,428 Philippines 2,348 South Africa 2,337 Illinois 2,029 North Carolina 1,712 Indonesia 1,618 Latin America 1,605 Soviet Union 1,515 New Jersey 1,437 Ohio 1,369 États-Unis 1,318 Middle East 1,316 Ireland 1,296 Connecticut 1,198 see all ...