Winkler, G. R. (1992). The Alaska Mineral Resource Assessment Program: Background information to accompany geologic and mineral-resource maps of the Cordova and Middleton Island quadrangles, southern Alaska. U.S. Department of the Interior, U.S. Geological Survey.
Chicago Style (17th ed.) CitationWinkler, Gary R. The Alaska Mineral Resource Assessment Program: Background Information to Accompany Geologic and Mineral-resource Maps of the Cordova and Middleton Island Quadrangles, Southern Alaska. [Reston, Virginia]: U.S. Department of the Interior, U.S. Geological Survey, 1992.
MLA (9th ed.) CitationWinkler, Gary R. The Alaska Mineral Resource Assessment Program: Background Information to Accompany Geologic and Mineral-resource Maps of the Cordova and Middleton Island Quadrangles, Southern Alaska. U.S. Department of the Interior, U.S. Geological Survey, 1992.