MLA

Survey (U.S.), Geological, Oregon. Department of Geology and Mineral Industries, and United States. Congress. Senate. Committee on Interior and Insular Affairs. Mineral and Water Resources of Oregon; Report Prepared In Collaboration with Oregon Dept. of Geology and Mineral Industries [and Others] At the Request of Senator Mark O. Hatfield of Oregon of the Committee On Interior and Insular Affairs, United States Senate. : Washington, U.S. Govt. Print. Off., 1969.