Title: Лѣвые въ III-мъ Интернаціоналѣ
Subjects: Socialism, Communism, History, Rossiĭskai͡a sot͡sial-demokraticheskai͡a rabochai͡a partii͡a, Zimmerwald Conference (1915) (uri) http://id.loc.gov/authorities/names/nr96021681 (uri) http://viaf.org/viaf/sourceID/LC|nr96021681
Places: Soviet Union
Time periods: Revolution, 1917-1921