APA (7th ed.) Citation

Gray, J. E. (1975). Energy policy: Industry perspectives (1. printing.). Ballinger.

Chicago Style (17th ed.) Citation

Gray, John E. Energy Policy: Industry Perspectives. 1. printing. Cambridge, Mass: Ballinger, 1975.

MLA (9th ed.) Citation

Gray, John E. Energy Policy: Industry Perspectives. 1. printing. Ballinger, 1975.