- Communists--Biography (2)
- Marx, Karl, 1818-1883 (2)
- Communism--History (1)
- Lessing, Gotthold Ephraim, 1729-1781 (1)
- Lessing, Gotthold Ephrain(1729-1781) (1)
- Literature, Modern--History and criticism (1)
- Marx, Karl, 1818-1883--Biography (1)
- Marx,Karl Heinrich(1818〜1883) (1)
- Proletariat in literature (1)
- Socialism in Germany--History (1)
- Socialism--Germany (1)
- Socialism--History (1)
- Working class in literature (1)
- ドイツ--歴史 (1)
- 哲学--叢書.全集.選集 (1)
- 社会民主主義 (1)