Libro 75,620 Thesis 65,548 Government Document 253 Electrónico 201 Capítulo de libro 54 Conference Proceeding 33 Manuscrito 27 Seriadas 18 Revista 9 Conxunto 7 Partituras 4 Reference Material 4 Mapa 2 Artigo 1 Audio 1 Xornal 1 Fotografía 1 Unknown 1 ver todos ...

K - Law 10,631 H - Social Science 9,354 D - World History 6,474 P - Language and Literature 3,971 B - Philosophy, Psychology, Religion 3,251 J - Political Science 2,632 Q - Science 2,617 N - Fine Arts 2,425 L - Education 1,762 G - Geography, Anthropology, Recreation 1,278 F - General American History 1,143 M - Music 1,003 E - United States History 639 T - Technology 519 S - Agriculture 499 Z - Library Science 475 R - Medicine 464 A - General Works 368 C - Historical Sciences 285 U - Military Science 265 V - Naval Science 57 ver todos ...

Inter-university Consortium for Political and Social Research 3,051 Harvard Law School 334 John F. Kennedy School of Government 228 George Clapp Vaillant Book Fund 161 ABC News 116 CBS News 112 Harvard University Department of Anthropology 105 Geological Survey (U.S.) 94 Université de Paris 94 Uppsala universitet 75 Anne and Joseph Trachtman Memorial Book Fund 72 Harvard College (1636-1780) 71 Alumni and Friends Memorial Book Fund 70 Class of 1932 Fund 66 Harvard University Graduate School of Design 66 Class of 1924 Book Fund 53 Culture Class Collection (University of Pennsylvania) 47 Sabin W. Colton, Jr., Memorial Fund 47 University of Pennsylvania Medical Dissertation Digital Library 47 Université de Lausanne Faculté de droit 46 Harvard University Graduate School of Education 42 Fiske Icelandic Collection 39 University of St. Andrews 38 Berch, Krister, 1730-1792 37 Université de Paris Faculté de droit 36 De Gruyter 35 Rand Corporation 34 Rand Graduate School 33 Reif, Karlheinz 33 Hazel M. Hussong Fund 32 ver todos ...

German 32,467 English 18,507 French 9,075 Spanish 5,040 Dutch 2,201 Latin 1,960 Swedish 1,954 Hebrew 1,725 Chinese 646 Italian 509 Portuguese 453 Turkish 384 Finnish 370 Arabic 352 Korean 296 Danish 276 Greek 188 Ancient Greek 113 Polish 88 Croatian 75 Norwegian 57 Russian 55 Japanese 52 Undetermined 49 Afrikaans 42 Indonesian 37 Urdu 31 Romanian 29 Catalan 19 Persian 16 ver todos ...

20th century 2,565 1900-1999 1,728 19th century 1,482 1800-1899 790 18th century 763 17th century 584 1700-1799 409 16th century 396 1900 - 1999 384 To 1500 353 21st century 265 1945- 261 1939-1945 260 1933-1945 240 1600-1699 227 20e siècle 221 1800-1999 220 1871-1918 218 1800 - 1899 201 1500-1599 192 1914-1918 182 1918-1933 182 1980-2020 146 Since 1945 144 1918-1945 136 Middle Ages, 600-1500 127 Early works to 1800 126 Geschichte 126 1700-1899 119 2000-2099 119 ver todos ...