Geological Survey (U.S.) & Wells, R. E. (1989). Geologic map of the Cape Disappointment--Naselle River area, Pacific and Wahkiakum counties, Washington. The Survey.
Chicago Style (17th ed.) CitationGeological Survey (U.S.) and Ray E. Wells. Geologic Map of the Cape Disappointment--Naselle River Area, Pacific and Wahkiakum Counties, Washington. Reston, Va.: The Survey, 1989.
MLA (9th ed.) CitationGeological Survey (U.S.) and Ray E. Wells. Geologic Map of the Cape Disappointment--Naselle River Area, Pacific and Wahkiakum Counties, Washington. The Survey, 1989.
Warning: These citations may not always be 100% accurate.