- Socialism (27)
- Communism (11)
- Lenin, Vladimir Ilʹich, 1870-1924 (3)
- Engels, Friedrich, 1820-1895 (2)
- Communism--Germany (1)
- Culture--Political aspects (1)
- Dialectical materialism (1)
- International Socialist Congress (1)
- Lenin, Vladimir Il'ich, 1870-1924 (1)
- Marx, Karl, 1818-1883 (1)
- Marx, Karl, 1818-1883. Manifest der Kommunistischen Partei (1)
- Propaganda (1)
- Propaganda, German (1)
- Revolutions and socialism (1)
- Stalin, Joseph, 1879-1953 (1)
- Tagore, Rabindranath, 1861-1941--Views on socialism (1)
- The International (1)
- Thompson, E. P. (Edward Palmer), 1924- (1)
- World War, 1914-1918 (1)