40 brigadirski leta
By: [sŭstaviteli B. Obretenov, D. Trifonov, P. Enev-Milkin].
Contributors: Obretenov, Borcho Vasilev.; Trifonov, D.; Milkin, Petŭr.
Edition: 1. izd.
Publisher: Nar. mladezh
Published: 1986
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 173
Subjects: Labor service -- Bulgaria -- History.; Youth -- Employment -- Bulgaria -- History.; Summer employment -- Bulgaria -- History.
Other titles: Chetirideset brigadirski leta.