Journal 4,914 Serial 2,642 Government Document 382 Book 249 Newspaper 109 Electronic 55 Kit 46 Conference Proceeding 20 Reference Material 5 Article 4 Thesis 4 Manuscript 1 Unknown 1 see all ...

D - World History 1,537 H - Social Science 901 P - Language and Literature 371 A - General Works 255 Z - Library Science 255 N - Fine Arts 179 Q - Science 174 J - Political Science 155 K - Law 135 L - Education 122 T - Technology 122 M - Music 116 B - Philosophy, Psychology, Religion 110 G - Geography, Anthropology, Recreation 98 U - Military Science 89 S - Agriculture 86 C - Historical Sciences 44 R - Medicine 40 E - United States History 20 F - General American History 13 V - Naval Science 13 see all ...

United States Joint Publications Research Service 290 United States Foreign Broadcast Information Service 233 Moskovskiĭ gosudarstvennyĭ universitet im. M.V. Lomonosova 52 Soviet Union Ministerstvo kulʹtury 51 Akademii︠a︡ nauk SSSR 50 Institut zur Erforschung der UdSSR 50 United States Department of Agriculture. Economic Research Service 41 Vsesoi︠u︡znai︠a︡ knizhnai︠a︡ palata 40 RFE/RL 38 Moskovskiĭ gosudarstvennyĭ universitet im. M.V. Lomonosova 36 Sakharov Library Collection (University of Pennsylvania) 34 Institut istorii (Akademii︠a︡ nauk SSSR) 32 Soviet Union 32 Gosudarstvennai︠a︡ biblioteka SSSR imeni V.I. Lenina 30 Soviet Union T︠S︡entralʹnoe statisticheskoe upravlenie 30 Vsesoi͡uznai͡a knizhnai͡a palata 30 Vsesoi︠u︡znyĭ t︠s︡entralʹnyĭ sovet professionalʹnykh soi︠u︡zov 30 Institut nauchnoĭ informat︠s︡ii po obshchestvennym naukam (Akademii︠a︡ nauk SSSR) 29 Commonwealth of Independent States Statistical Committee 28 Akademii͡a nauk SSSR 27 Soi︠u︡z pisateleĭ SSSR 27 T︠S︡K KPSS 27 Soviet Union Ministerstvo oborony 26 Leningradskiĭ gosudarstvennyĭ universitet imeni A.A. Zhdanova 25 Soviet Union Ministerstvo vysshego i srednego spet︠s︡ialʹnogo obrazovanii︠a︡ 23 Soviet Union T͡Sentralʹnoe statisticheskoe upravlenie 23 United States World Agricultural Outlook Board 23 Vsesoi︠u︡znyĭ leninskiĭ kommunisticheskiĭ soi︠u︡z molodezhi T︠S︡entralʹnyĭ komitet 23 Rossiĭskai︠a︡ akademii︠a︡ nauk 22 Soviet Union Ministerstvo selʹskogo khozi︠a︡ĭstva 22 see all ...

Russian 5,803 English 2,046 French 204 German 198 Yiddish 97 Ukrainian 49 Japanese 46 Spanish 46 Hebrew 38 Polish 38 Multiple 34 Chinese 32 Undetermined 30 Italian 24 Czech 20 Georgian 10 Turkish 10 Armenian 8 Norwegian 8 Arabic 6 Swedish 6 Korean 5 Croatian 4 Danish 4 Dutch 4 Estonian 4 Greek 4 Latvian 4 Tatar 4 Azerbaijani 3 see all ...

20th century 390 Revolution, 1917-1921 279 1985-1991 188 1917-1936 135 1900-1999 118 1945- 91 1953-1985 90 1917-1945 88 1917- 82 1945-1991 82 1917-1921 59 1989- 54 1975-1985 51 1991- 48 Since 1917 45 1900 - 1999 41 1945-1989 39 Since 1989 34 19th century 33 1801-1917 31 1970-1991 30 Since 1945 30 1936-1953 29 1986-1991 27 1894-1917 26 1985 - 1991 26 1985- 24 1939-1945 23 1955-1965 23 1953- 21 see all ...