APA (7th ed.) Citation

Davidson, J. R. (1973). Coal-energy development in the northern Great Plains. [publisher not identified].

Chicago Style (17th ed.) Citation

Davidson, Jack R. Coal-energy Development in the Northern Great Plains. [Place of publication not identified]: [publisher not identified], 1973.

MLA (9th ed.) Citation

Davidson, Jack R. Coal-energy Development in the Northern Great Plains. [publisher not identified], 1973.