APA (7th ed.) Citation

Averitt, P., & Berryhill, L. R. (1950). Coal resources of the United States: A progress report, Nov. l, 1950. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Averitt, Paul, and Louise R. Berryhill. Coal Resources of the United States: A Progress Report, Nov. L, 1950. Washington, D.C.: United States Department of the Interior, Geological Survey, 1950.

MLA (9th ed.) Citation

Averitt, Paul, and Louise R. Berryhill. Coal Resources of the United States: A Progress Report, Nov. L, 1950. United States Department of the Interior, Geological Survey, 1950.