Z - Library Science 40,993 C - Historical Sciences 4,594 D - World History 3,574 P - Language and Literature 2,561 H - Social Science 2,189 K - Law 2,004 M - Music 1,868 F - General American History 980 B - Philosophy, Psychology, Religion 843 Q - Science 841 N - Fine Arts 594 E - United States History 549 G - Geography, Anthropology, Recreation 520 L - Education 512 A - General Works 476 J - Political Science 468 R - Medicine 325 S - Agriculture 282 T - Technology 258 U - Military Science 73 V - Naval Science 29 see all ...

Library of Congress Congressional Research Service 438 Library of Congress 291 Library of Congress Division of Bibliography 222 Geological Survey (U.S.) 221 Harris Collection of American Poetry and Plays (Brown University) Reference Works 217 Great Britain Public Record Office 196 Vance, Mary A 194 White, Anthony G 185 Fiske Icelandic Collection 183 Gotham Book Mart Collection (University of Pennsylvania) 179 Horace Howard Furness Memorial Library (University of Pennsylvania) 173 Harmon, Robert B (Robert Bartlett), 1932- 143 Archivo General de la Nación (Mexico) 132 United States National Archives and Records Service 130 National Criminal Justice Reference Service (U.S.) 125 Archives nationales (France) 118 Gosudarstvennai︠a︡ publichnai︠a︡ biblioteka imeni M.E. Saltykova-Shchedrina 111 New York Public Library 107 McMurtrie, Douglas C (Douglas Crawford), 1888-1944 103 Fraunhofer-Gesellschaft Informationszentrum Raum und Bau 102 Gosudarstvennai︠a︡ biblioteka SSSR imeni V.I. Lenina 101 Archivo General de la Nación (Mexico) 99 Akademii︠a︡ nauk SSSR Biblioteka 98 National Archives (U.S.) 98 British Library 95 United States Bureau of the Census 95 Library of Congress Legislative Reference Service 94 Doumato, Lamia 91 David E. Pingree Collection (Brown University) 89 Rollo Silver Collection (Brown University) Duplicates not retained 89 see all ...

English 43,690 French 6,757 German 6,705 Spanish 5,046 Russian 4,126 Chinese 3,202 Italian 2,771 Japanese 2,535 Portuguese 1,118 Dutch 1,002 Polish 936 Arabic 719 Latin 697 Hebrew 540 Czech 470 Multiple 412 Ukrainian 400 Turkish 370 Korean 367 Hungarian 310 Swedish 305 Greek 284 Danish 265 Bulgarian 260 Indonesian 248 Persian 247 Thai 168 Croatian 166 Slovak 163 Romanian 136 see all ...

Bibliography 58,632 Bibliographies 33,667 Catalogs 16,250 History 13,432 bibliographies 2,082 Imprints 2,081 Biography 1,924 Sources 1,874 Criticism, interpretation, etc 1,591 Biographies 1,309 Union lists 1,274 Union catalogs 1,255 Bibliographie 1,138 Indexes 1,105 Exhibitions 1,003 Exhibition catalogs 832 Bio-bibliography 825 Directories 813 Catalogues 749 Bibliography of bibliographies 678 Local history 665 Union lists (Library catalogs) 593 catalogs (documents) 535 Abstracts 474 Periodicals 460 Congresses 441 Maps 427 Church history 425 Microform catalogs 409 Conference papers and proceedings 402 see all ...

20th century 2,431 19th century 1,198 1900-1999 1,064 18th century 929 1900 - 1999 776 16th century 708 17th century 572 1800-1899 386 1945- 342 1700-1799 337 1500-1599 291 1800 - 1899 257 Revolution, 1789-1799 254 1939-1945 231 Early modern, 1500-1700 211 Since 1945 197 1700 - 1799 186 Civil War, 1861-1865 182 Early works to 1800 173 Revolution, 1775-1783 170 Colonial period, ca. 1600-1775 158 1600-1699 155 1564-1616 145 1500 - 1599 136 1939 - 1945 128 To 1500 128 1800-1999 124 1933-1945 114 1500 - 1700 111 Revolution, 1917-1921 108 see all ...