APA (7th ed.) Citation

King, C. B., & Risher, H. W. (1969). The Negro in the petroleum industry. Industrial Research Unit, Wharton School of Finance and Commerce, University of Pennsylvania; distributed by University of Pennsylvania Press.

Chicago Style (17th ed.) Citation

King, Carl B., and Howard W. Risher. The Negro in the Petroleum Industry. Philadelphia: Industrial Research Unit, Wharton School of Finance and Commerce, University of Pennsylvania; distributed by University of Pennsylvania Press, 1969.

MLA (8th ed.) Citation

King, Carl B., and Howard W. Risher. The Negro in the Petroleum Industry. Industrial Research Unit, Wharton School of Finance and Commerce, University of Pennsylvania; distributed by University of Pennsylvania Press, 1969.