APA (7th ed.) Citation

Tyner, W. E., Kalter, R. J., & Wold, J. P. (1978). Western coal: Promise or problem. Lexington Books.

Chicago Style (17th ed.) Citation

Tyner, Wallace E., Robert John Kalter, and John P. Wold. Western Coal: Promise or Problem. Lexington, Mass.: Lexington Books, 1978.

MLA (8th ed.) Citation

Tyner, Wallace E., et al. Western Coal: Promise or Problem. Lexington Books, 1978.