APA (7th ed.) Citation

Berryhill, L. R., & Averitt, P. (1951). Coking-coal deposits of the western United States. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Berryhill, Louise R., and Paul Averitt. Coking-coal Deposits of the Western United States. Washington, D.C.: United States Department of the Interior, Geological Survey, 1951.

MLA (9th ed.) Citation

Berryhill, Louise R., and Paul Averitt. Coking-coal Deposits of the Western United States. United States Department of the Interior, Geological Survey, 1951.