Modrz hinskaya, Y. (1972). Leninism and the battle of ideas. Progress.
Chicago-čujuhus (17. p.)Modrz hinskaya, Yelena. Leninism and the Battle of Ideas. Moscow: Progress, 1972.
MLA-čujuhus (9. p.)Modrz hinskaya, Yelena. Leninism and the Battle of Ideas. Progress, 1972.
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