Detra, D. E., & Cooley, E. F. (1980). Distribution and abundance of copper in minus-80-mesh stream-sediment and nonmagnetic heavy-mineral-concentrate samples, Chignik and Sutwik Island quadrangles, Alaska. U.S. Geological Survey.
Chicago Style (17th ed.) CitationDetra, D. E., and Elmo F. Cooley. Distribution and Abundance of Copper in Minus-80-mesh Stream-sediment and Nonmagnetic Heavy-mineral-concentrate Samples, Chignik and Sutwik Island Quadrangles, Alaska. Reston, Va.: U.S. Geological Survey, 1980.
MLA (9th ed.) CitationDetra, D. E., and Elmo F. Cooley. Distribution and Abundance of Copper in Minus-80-mesh Stream-sediment and Nonmagnetic Heavy-mineral-concentrate Samples, Chignik and Sutwik Island Quadrangles, Alaska. U.S. Geological Survey, 1980.
Warning: These citations may not always be 100% accurate.