Uchastie na profsŭi͡u︡zite i trudeshtite se v normiraneto na truda
By: Boris Petrov, Aleksandŭr Garvanov, Blazho Banchev.
Publisher: Nauchnoizsledovatelski in-t po profsŭi͡u︡zni problemi "Georgi Dimitrov" pri T͡S︡S na BPS
Published: 1982
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 57