Powell, Jack Richard. The Mexican petroleum industry, 1938-1950 by J. Richard Powell. - Berkeley University of California Press 1956. - 269 p. illus. - Publications of the Institute of Business and Economic Research, University of California. . Bibliography: p. 257-261. LCCN: 91180614 //r86 Subjects--Topical Terms: Petroleum industry and trade--Mexico. LC Class. No.: HD9574.M6 / P6 1972 Dewey Class. No.: 338.2/7/280972