Geological Survey (U.S.) & Lipman, P. W. (2020). Geologic map of the Bonanza Caldera area, northeastern San Juan Mountains, Colorado. U.S. Department of the Interior, U.S. Geological Survey.
Chicago Style (17th ed.) CitationGeological Survey (U.S.) and Peter W. Lipman. Geologic Map of the Bonanza Caldera Area, Northeastern San Juan Mountains, Colorado. [Reston, Va.]: U.S. Department of the Interior, U.S. Geological Survey, 2020.
MLA (9th ed.) CitationGeological Survey (U.S.) and Peter W. Lipman. Geologic Map of the Bonanza Caldera Area, Northeastern San Juan Mountains, Colorado. U.S. Department of the Interior, U.S. Geological Survey, 2020.
Warning: These citations may not always be 100% accurate.