APA

Amursky G., Ermakov V., Zhabrev I., World Petroleum Congress (11th. : 1983 : London), Ermakov V. & Zhabrev I.Valuable components in natural gases in the USSR. : .

Chicago

Amursky G.I, Ermakov V.I, Zhabrev I.P, World Petroleum Congress (11th. : 1983 : London), Ermakov V.I and Zhabrev I.P.Valuable components in natural gases in the USSR. : .

Harvard

Amursky G., Ermakov V., Zhabrev I., World Petroleum Congress (11th. : 1983 : London), Ermakov V. and Zhabrev I.Valuable components in natural gases in the USSR. : .

MLA

Amursky G.I, Ermakov V.I, Zhabrev I.P, World Petroleum Congress (11th. : 1983 : London), Ermakov V.I and Zhabrev I.P.: . .