Geological Survey (U.S.) & Zimbelman, D. R. (1989). Maps showing trace-element geochemistry of the Sangre de Cristo Wilderness Study Area, south-central Colorado. The Survey.
Chicago Style (17th ed.) CitationGeological Survey (U.S.) and David R. Zimbelman. Maps Showing Trace-element Geochemistry of the Sangre De Cristo Wilderness Study Area, South-central Colorado. Reston, Va.: The Survey, 1989.
MLA (9th ed.) CitationGeological Survey (U.S.) and David R. Zimbelman. Maps Showing Trace-element Geochemistry of the Sangre De Cristo Wilderness Study Area, South-central Colorado. The Survey, 1989.
Warning: These citations may not always be 100% accurate.