Sedem vŭrkha na sedmata petiletka
By: [Margarita Martinova].
Contributors: T͡S︡entralen komitet na DKMS.
Publisher: Dimitrovski komunisticheski mladezhki sŭi͡u︡z, T͡S︡entr. komitet
Published: 1978
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 55
Subjects: Industries -- Bulgaria.; Working class -- Bulgaria.; Construction workers -- Bulgaria.