Vladimir Ilich Lenin i Bulgarskata komunisticheska partiia. : [Sbornik materiali] - Grigorov, Boian; Vekov, Angel Khr.; Institut po istoriia na Bulgarskata komunisticheska partiia (Sofiia : BKP, 1970)
At head of title: Institut po istoriia na BKP pri TSK na BKP
Compiled by A. Vekovand others
Keywords: Lenin, Vladimir Ilich, -- 1870-1924; Bulgarska komunisticheska partiia; Communism -- Bulgaria -- History -- Sources; Communist parties -- Bulgaria