Elliott, J. E. (1993). The Conterminous United States Mineral Assessment Program: Background information to accompany folio of geologic, geochemical remote sensing, and mineral resources maps of the Butte 1° x 2° quadrangle, Montana. U.S. Department of the Interior, U.S. Geological Survey.
Chicago Style (17th ed.) CitationElliott, James E. The Conterminous United States Mineral Assessment Program: Background Information to Accompany Folio of Geologic, Geochemical Remote Sensing, and Mineral Resources Maps of the Butte 1° X 2° Quadrangle, Montana. [Reston, Virginia]: U.S. Department of the Interior, U.S. Geological Survey, 1993.
MLA (9th ed.) CitationElliott, James E. The Conterminous United States Mineral Assessment Program: Background Information to Accompany Folio of Geologic, Geochemical Remote Sensing, and Mineral Resources Maps of the Butte 1° X 2° Quadrangle, Montana. U.S. Department of the Interior, U.S. Geological Survey, 1993.