Bratska pregrŭdka s Komi zemi͡a
By: Fedi͡a I͡Akov.
Publisher: Profsŭi͡uz na rabotnit͡site ot gorite i gorskata promishlenost, T͡Sentr. kom-t
Published: 1977
Place of publication: Sofii͡a
Language: bul
Number of pages: 44