APA (7th ed.) Citation

Singer, D. A. (1998). Revised grade and tonnage model of carbonatite deposits. U.S. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Singer, D. A. Revised Grade and Tonnage Model of Carbonatite Deposits. Menlo Park, CA: U.S. Department of the Interior, U.S. Geological Survey, 1998.

MLA (9th ed.) Citation

Singer, D. A. Revised Grade and Tonnage Model of Carbonatite Deposits. U.S. Department of the Interior, U.S. Geological Survey, 1998.