LLeon Trotsky on the trade unionsLeon Trotsky on the trade unionsde Leon TrotskyEdiciones (1)Leon Trotsky on the trade unions (1969)Merit PublishersMás obras de Leon TrotskyBB. Pil'nyakB. Pil'nyakCChto i kak proizoshlo?Chto i kak proizoshlo?TThe draft program of the Communist InternationalThe draft program of the Communist International