United States. Bonneville Power Administration. (1939). Pacific Northwest mineral occurrences: August, 1939. U.S. Dept. of the Interior.
Chicago Style (17th ed.) CitationUnited States. Bonneville Power Administration. Pacific Northwest Mineral Occurrences: August, 1939. Washington, D.C.: U.S. Dept. of the Interior, 1939.
MLA (8th ed.) CitationUnited States. Bonneville Power Administration. Pacific Northwest Mineral Occurrences: August, 1939. U.S. Dept. of the Interior, 1939.
Warning: These citations may not always be 100% accurate.