Metodichesko ukazanie za uchitelite po proizvodstveno obuchenie v SPU i PG za profesii͡a︡ta "Studena obrabotka na metalite"
By: Ivan Braĭkov, Petŭr Borisov.
Publisher: Upr. "Sredno spet͡s︡ialno i profesionalno-tekhnichesko obrazovanie"
Published: 1977
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 101