APA (7th ed.) Citation

Berg, M. D. (1996). Economic models of U.S. Petroleum production. [publisher not identified].

Chicago Style (17th ed.) Citation

Berg, Milo Douglas. Economic Models of U.S. Petroleum Production. [Place of publication not identified]: [publisher not identified], 1996.

MLA (9th ed.) Citation

Berg, Milo Douglas. Economic Models of U.S. Petroleum Production. [publisher not identified], 1996.