Fossil coals basin p.Pechora

Volkov, Mikhail SemenovichFossil coals basin p.Pechoras: With 2 cards./ M.S.Wolves;Coal Institute.- Moscow ;Leningrad: Geol.Publishing houseGeol.control, 1931. -31 p., 2 literskart.: Il., Table .. - (Proceedings of the main geological and exploration department of the HSSR of the USSR; Issue 18).-Stall.series paral.to rus.and eng.Yaz., Summary in English.Yaz.List of use.lit.: with.25-26..-1000 copies.I. Geological exploration Coal Institute (Leningrad).Electronic Source: PB