United States Congress. House. Committee on Un-American Activities 937
Lenin, Vladimir Ilʹich, 1870-1924 891
Mao, Zedong, 1893-1976 751
Marx, Karl, 1818-1883 616
Riewert Tode Collection of German Student Movements and Counter-Culture 512
Engels, Friedrich, 1820-1895 485
Trotsky, Leon, 1879-1940 478
Stalin, Joseph, 1878-1953 451
Communist International Congress 412
United States Congress. Senate. Committee on the Judiciary. Subcommittee to Investigate the Administration of the Internal Security Act and Other Internal Security Laws 305
United States Congress. Senate. Committee on the Judiciary 263
Owen, Robert, 1771-1858 249
Communist International Executive Committee 230
Walter L. Pforzheimer Intelligence Collection (Beinecke Rare Book and Manuscript Library) 225
De Gruyter 214
Institut marksizma-leninizma (Moscow, Russia) 205
Communist International 199
Communist Party of the United States of America 179
Group Research Collection (Columbia University. Libraries) 164
Browder, Earl, 1891-1973 155
Kommunisticheskai︠a︡ partii︠a︡ Sovetskogo Soi︠u︡za Sʺezd 152
Zinovyev, Grigory Yevseyevich, 1883-1936 150
ebrary, Inc 148
Dimitrov, Georgi, 1882-1949 147
Bukharin, Nikolaĭ, 1888-1938 138
Castro, Fidel, 1926-2016 138
Kommunisticheskai͡a partii͡a Sovetskogo Soi͡uza Sʺezd 137
T︠S︡K KPSS 137
Communist Party of Great Britain 132
Kommunistische Partei Deutschlands 123
Gramsci, Antonio, 1891-1937 122
Kautsky, Karl, 1854-1938 122
Guevara, Che, 1928-1967 116
Bukharin, Nikolaĭ, 1888-1938 112
Service Center for Chinese Publications 106
Aidit, D. N., 1923-1965 104
Gotham Book Mart Collection (University of Pennsylvania) 95
Togliatti, Palmiro, 1893-1964 94
T͡SK KPSS 93
Kommunisticheskai︠a︡ partii︠a︡ Sovetskogo Soi︠u︡za 91
Radek, Karl, 1885-1939 91
Workers Library Publishers 91
Partai Komunis Indonesia 88
United States Congress. House. Committee on Foreign Affairs 86
Carrillo, Santiago 80
ProQuest (Firm) 80
United States Congress. House. Special Committee on Un-American Activities 78
Kim, Il-sŏng, 1912-1994 77
United States Joint Publications Research Service 77
Luxemburg, Rosa, 1871-1919 75
United States Department of State 74
Hoxha, Enver, 1908-1985 73
Liu, Shaoqi, 1898-1969 73
Snow, Edgar, 1905-1972 73
Institut für Marxismus-Leninismus beim ZK der SED 72
Partito comunista italiano 70
Considerant, Victor, 1808-1893 69
Thorez, Maurice, 1900-1964 69
Fourier, Charles, 1772-1837 68
Zhongguo gong chan dang Zhong yang wei yuan hui 68
Hoover Institution on War, Revolution, and Peace 67
Library of Congress Legislative Reference Service 67
Mandel, Ernest 66
Brezhnev, Leonid Ilʹich, 1906-1982 65
Foster, William Z., 1881-1961 64
Library of Congress Congressional Research Service 64
Lukács, György, 1885-1971 63
Zhong yang dang an guan (China) 63
Kommunisticheskai͡a partii͡a Sovetskogo Soi͡uza 62
Asian Peoples' Anti-Communist League, Republic of China 61
Khrushchev, Nikita Sergeevich, 1894-1971 61
Zhongguo gong chan dang 61
Kropotkin, Petr Alekseevich, kni︠a︡zʹ, 1842-1921 59
United States Subversive Activities Control Board 59
Alexander Street Press 56
Djilas, Milovan, 1911-1995 56
Communist Party of India 55
Massachusetts Institute of Technology Center for International Studies 55
Fedoseev, P. N (Petr Nikolaevich) 54
Sallie Bingham Center for Women's History and Culture 54
Weitling, Wilhelm, 1808-1871 53
Radio Free Europe 52
American Council of Learned Societies 51
Cannon, James Patrick, 1890-1974 51
Castro, Fidel, 1927- 51
Institut für Marxismus-Leninismus beim ZK der SED 51
United States Congress. Senate. Committee on Government Operations. Permanent Subcommittee on Investigations 51
Akademii︠a︡ obshchestvennykh nauk (Moscow, Russia) 50
Bradford H. Gray Collection in the History of Social Thought (Beinecke Rare Book and Manuscript Library) 49
Ibárruri, Dolores, 1895-1989 49
Institut mezhdunarodnogo rabochego dvizhenii︠a︡ (Akademii︠a︡ nauk SSSR) 49
Partido Comunista de la Argentina 49
Arismendi, Rodney 48
Chen, Boda, 1904-1989 48
Kim, Il-sŏng, 1912-1994 48
Lê, Duả̂n, 1907-1986 48
Miflagah ha-ḳomunisṭit ha-Yiśreʼelit 48
Pieck, Wilhelm, 1876-1960 48
Solzhenit︠s︡yn, Aleksandr Isaevich, 1918-2008 48
Tismaneanu, Vladimir 47