Cite
MLA (8th Edition)
Geologic Map of the Collegiate Peaks Wilderness Area and the Grizzly Peak Caldera, Sawatch Range, Central Colorado. For sale by U.S. Geological Survey Information Services, The Survey, 1998.
APA (7th Edition)
Geologic map of the Collegiate Peaks Wilderness Area and the Grizzly Peak Caldera, Sawatch Range, central Colorado. (1998). For sale by U.S. Geological Survey Information Services, The Survey.
Chicago (17th Edition)
“Geologic Map of the Collegiate Peaks Wilderness Area and the Grizzly Peak Caldera, Sawatch Range, Central Colorado.” Denver, CO: For sale by U.S. Geological Survey Information Services, The Survey, 1998.