Brigadnata organizat͡s︡ii͡a︡ na truda v mesopromishlenostta
By: Todor Vŭlchev, Khristo T͡S︡achev.
Publisher: Obedinena red. "Khranitelna promishlenost"
Published: 1982
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 150