APA (7th ed.) Citation

Geological Survey (U.S.) & Foley, N. K. (1993). Mineralogy, mineral chemistry, and paragenesis of gold, silver, and base-metal ores of the North Amethyst vein system, San Juan Mountains, Mineral County, Colorado. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and N. K. Foley. Mineralogy, Mineral Chemistry, and Paragenesis of Gold, Silver, and Base-metal Ores of the North Amethyst Vein System, San Juan Mountains, Mineral County, Colorado. [Reston, Va.]: U.S. Dept. of the Interior, U.S. Geological Survey, 1993.

MLA (9th ed.) Citation

Geological Survey (U.S.) and N. K. Foley. Mineralogy, Mineral Chemistry, and Paragenesis of Gold, Silver, and Base-metal Ores of the North Amethyst Vein System, San Juan Mountains, Mineral County, Colorado. U.S. Dept. of the Interior, U.S. Geological Survey, 1993.