APA (7th ed.) Citation

Gordon, R. L. (1978). Coal in the U.S. energy market: History and prospects. Lexington Books.

Chicago Style (17th ed.) Citation

Gordon, Richard L. Coal in the U.S. Energy Market: History and Prospects. Lexington, Mass.: Lexington Books, 1978.

MLA (8th ed.) Citation

Gordon, Richard L. Coal in the U.S. Energy Market: History and Prospects. Lexington Books, 1978.