Coats, R. R. (1959). Geologic reconnaissance of Semisopochnoi Island, western Aleutian Islands, Alaska. United States Department of the Interior, Geological Survey.
Chicago Style (17th ed.) CitationCoats, Robert R. Geologic Reconnaissance of Semisopochnoi Island, Western Aleutian Islands, Alaska. [Washington, D.C.]: United States Department of the Interior, Geological Survey, 1959.
MLA (9th ed.) CitationCoats, Robert R. Geologic Reconnaissance of Semisopochnoi Island, Western Aleutian Islands, Alaska. United States Department of the Interior, Geological Survey, 1959.
Warning: These citations may not always be 100% accurate.