Geological Survey (U.S.) & United States. Bureau of Mines. Principles of the mineral resource classification system of the U.S. Bureau of Mines and U.S. Geological Survey.
Chicago Style (17th ed.) CitationGeological Survey (U.S.) and United States. Bureau of Mines. Principles of the Mineral Resource Classification System of the U.S. Bureau of Mines and U.S. Geological Survey.
MLA (9th ed.) CitationGeological Survey (U.S.) and United States. Bureau of Mines. Principles of the Mineral Resource Classification System of the U.S. Bureau of Mines and U.S. Geological Survey.
Warning: These citations may not always be 100% accurate.