Wyllie, M. R. J. 1919- The fundamentals of electric log interpretation / [by] M. R. J. Wyllie. - 2nd ed. rev. - New York: Academic Press, 1957. - x, 176 p. : tables ; 21 cm. Includes index (p. 171-176). Subjects--Topical Terms: Oil well logging, Electric Dewey Class. No.: 622.338