Funkt͡sionirane i razvitie na informat͡sionnata sistema v Bŭlgarskite profesionalni sŭi͡uzi
By: Marii͡ Zhecheva.
Publisher: Nauchnoizsledovatelski in-t po profsŭi͡uzni problemi "G. Dimitrov" pri T͡SS na BPS
Published: 1982
Place of publication: Sofii͡a
Language: bul
Number of pages: 56