APA (7th ed.) Citation

United States. Bureau of Mines & Geological Survey (U.S.). (1976). Principles of the mineral resource classification system of the U.S. Bureau of Mines and U.S. Geological Survey. U.S. Bureau of Mines : U.S. Geological Survey.

Chicago Style (17th ed.) Citation

United States. Bureau of Mines and Geological Survey (U.S.). Principles of the Mineral Resource Classification System of the U.S. Bureau of Mines and U.S. Geological Survey. [Washington, D.C.]: U.S. Bureau of Mines : U.S. Geological Survey, 1976.

MLA (9th ed.) Citation

United States. Bureau of Mines and Geological Survey (U.S.). Principles of the Mineral Resource Classification System of the U.S. Bureau of Mines and U.S. Geological Survey. U.S. Bureau of Mines : U.S. Geological Survey, 1976.