Levorsen, A. I., 1894-1965.
Geology of petroleum / A.I. Levorsen. - 2nd ed. - San Francisco : W.H. Freeman, 1967. - x, 724 p. : ill. - A series of books in geology. .
Petroleum--Geology.
Geology of petroleum / A.I. Levorsen. - 2nd ed. - San Francisco : W.H. Freeman, 1967. - x, 724 p. : ill. - A series of books in geology. .
Petroleum--Geology.