APA (7th ed.) Citation

Gray, F. (2014). Porphyry copper assessment of Central America and the Caribbean Basin. U.S. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Gray, Floyd. Porphyry Copper Assessment of Central America and the Caribbean Basin. Reston, Virginia: U.S. Department of the Interior, U.S. Geological Survey, 2014.

MLA (9th ed.) Citation

Gray, Floyd. Porphyry Copper Assessment of Central America and the Caribbean Basin. U.S. Department of the Interior, U.S. Geological Survey, 2014.