Sʺezd bolgarskikh profsoiuzov (10; 1987; Sofiia)
Subtitle: X sʺezd bolgarskikh profsoiuzov, 7-10 apr. 1987, Sofiia
By: per. s bolg
Publisher: Profizdat
Published: 1988
Place of publication: Moskva
Language: rus
Number of pages: 1500