Osmi kongres na Bulgarskite profesionalni suiuzi
Subtitle: materiali i dokumenti, 4-6 april 1977
By: [sust. Kosta Andreev ... et al.].
Publisher: Profizdat
Published: 1978
Place of publication: Sofiia
Language: bul
Number of pages: 599
Notes: committed to retain 20181001 in perpetuity ReCAP Shared Collection