APA (7th ed.) Citation

Gray, F. (1992). The Conterminous United States Mineral Assessment Program: Background information to accompany folio of geologic, geochemical, geophysical, and mineral resource maps of the Ajo and Lukeville 1° by 2° quadrangles, Arizona. U.S. Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Gray, Floyd. The Conterminous United States Mineral Assessment Program: Background Information to Accompany Folio of Geologic, Geochemical, Geophysical, and Mineral Resource Maps of the Ajo and Lukeville 1° by 2° Quadrangles, Arizona. [Reston, Virginia]: U.S. Department of the Interior, Geological Survey, 1992.

MLA (9th ed.) Citation

Gray, Floyd. The Conterminous United States Mineral Assessment Program: Background Information to Accompany Folio of Geologic, Geochemical, Geophysical, and Mineral Resource Maps of the Ajo and Lukeville 1° by 2° Quadrangles, Arizona. U.S. Department of the Interior, Geological Survey, 1992.