Усов М. А. (1940). The main geochemical epochs of West Siberia; International geological congress. Report of the XVII session. USSR. 1937; Vol. 5. 1940.
Citace podle Chicago (17th ed.)Усов М. А. The Main Geochemical Epochs of West Siberia; International Geological Congress. Report of the XVII Session. USSR. 1937; Vol. 5. 1940, 1940.
Citace podle MLA (9th ed.)Усов М. А. The Main Geochemical Epochs of West Siberia; International Geological Congress. Report of the XVII Session. USSR. 1937; Vol. 5. 1940, 1940.
Upozornění: Tyto citace jsou generovány automaticky. Nemusí být zcela správně podle citačních pravidel..