APA (7th ed.) Citation

Geological Survey (U.S.) & Kelly, T. (2001). Historical statistics for mineral and material commodities in the United States (Version 6.7.). U.S. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and Thomas Kelly. Historical Statistics for Mineral and Material Commodities in the United States. Version 6.7. [Reston, Va.]: U.S. Department of the Interior, U.S. Geological Survey, 2001.

MLA (9th ed.) Citation

Geological Survey (U.S.) and Thomas Kelly. Historical Statistics for Mineral and Material Commodities in the United States. Version 6.7. U.S. Department of the Interior, U.S. Geological Survey, 2001.