Bruggman, P. E. (1987). Chemical analyses of rocks and glass separates from Crater Lake National Park and vicinity, Oregon. Department of the Interior, U.S. Geological Survey.
Chicago Style (17th ed.) CitationBruggman, Peggy E. Chemical Analyses of Rocks and Glass Separates from Crater Lake National Park and Vicinity, Oregon. Menlo Park, California: Department of the Interior, U.S. Geological Survey, 1987.
MLA (9th ed.) CitationBruggman, Peggy E. Chemical Analyses of Rocks and Glass Separates from Crater Lake National Park and Vicinity, Oregon. Department of the Interior, U.S. Geological Survey, 1987.
Warning: These citations may not always be 100% accurate.