Peterson, J. A., & Sorensen, M. L. (1985). Map showing geochemical summary for the Bald Rock and Middle Fork Feather River Roadless Areas, Butte and Plumas Counties, California. U.S. Geological Survey.
Chicago Style (17th ed.) CitationPeterson, Jocelyn A., and Martin L. Sorensen. Map Showing Geochemical Summary for the Bald Rock and Middle Fork Feather River Roadless Areas, Butte and Plumas Counties, California. Reston, Va.: U.S. Geological Survey, 1985.
MLA (9th ed.) CitationPeterson, Jocelyn A., and Martin L. Sorensen. Map Showing Geochemical Summary for the Bald Rock and Middle Fork Feather River Roadless Areas, Butte and Plumas Counties, California. U.S. Geological Survey, 1985.
Warning: These citations may not always be 100% accurate.