Pirsson, L. V. (1905). Petrography and geology of the igneous rocks of the Highwood mountains, Montana. Department of the Interior, United States Geological Survey.
Chicago Style (17th ed.) CitationPirsson, Louis V. Petrography and Geology of the Igneous Rocks of the Highwood Mountains, Montana. Washington, D.C.: Department of the Interior, United States Geological Survey, 1905.
MLA (9th ed.) CitationPirsson, Louis V. Petrography and Geology of the Igneous Rocks of the Highwood Mountains, Montana. Department of the Interior, United States Geological Survey, 1905.
Warning: These citations may not always be 100% accurate.