APA (7th ed.) Citation

Thomson, R. D., & York, H. F. (1975). The reserve base of U.S. coal by sulfur content (in two parts). 1. The Eastern States. U.S. Dept. of the Interior, Bureau of Mines.

Chicago Style (17th ed.) Citation

Thomson, Robert D., and Harold F. York. The Reserve Base of U.S. Coal by Sulfur Content (in Two Parts). 1. The Eastern States. [Washington]: U.S. Dept. of the Interior, Bureau of Mines, 1975.

MLA (9th ed.) Citation

Thomson, Robert D., and Harold F. York. The Reserve Base of U.S. Coal by Sulfur Content (in Two Parts). 1. The Eastern States. U.S. Dept. of the Interior, Bureau of Mines, 1975.