Geological Survey (U.S.). (1939). Surface water supply of United States, 1938: Pt. 14. Pacific slope basins in Oregon and lower Columbia River basin. [s.n.].
Chicago Style (17th ed.) CitationGeological Survey (U.S.). Surface Water Supply of United States, 1938: Pt. 14. Pacific Slope Basins in Oregon and Lower Columbia River Basin. [Washington]: [s.n.], 1939.
MLA (9th ed.) CitationGeological Survey (U.S.). Surface Water Supply of United States, 1938: Pt. 14. Pacific Slope Basins in Oregon and Lower Columbia River Basin. [s.n.], 1939.
Warning: These citations may not always be 100% accurate.