Petroleum /
Sokolov, V.
Petroleum / V. Sokolov ; translated ... by Victor Purto. - Moscow : Mir, [1972] - 334 p. : il. ; 21 cm.
Petroleum / V. Sokolov ; translated ... by Victor Purto. - Moscow : Mir, [1972] - 334 p. : il. ; 21 cm.
