Shanazarov, Dimitry A. Petroleum problem of Siberia. - Tulsa : The Am.Ass.of Petroleum Geologists, 1948. - 23 p. : il. ; 24 cm Subjects--Topical Terms: Geología económicaPetróleo Subjects--Geographic Terms: Siberia Index Terms--Genre/Form: Libro Universal Decimal Class. No.: 553.982