Okhrana na truda
Subtitle: nagledni materiali
By: [otg. red. Stoi͡a︡n Andreev].
Contributors: Andreev, Stoi͡a︡n.; Nauchnoizsledovatelski institut po profsŭi͡u︡zni problemi Georgi Dimitrov.
Publisher: Nauchnoizsledovatelski in-t po profsŭi͡u︡zni problemi "G. Dimitrov" pri T͡S︡S na BPS
Published: 1980
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 80
Subjects: Industrial hygiene -- Bulgaria.