United States. Soil Conservation Service. (1939). Effect of accelerated erosion on silting in Morena Reservoir, San Diego County, Calif. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Soil Conservation Service. Effect of Accelerated Erosion on Silting in Morena Reservoir, San Diego County, Calif. [Washington]: [s.n.], 1939.
MLA (9th ed.) CitationUnited States. Soil Conservation Service. Effect of Accelerated Erosion on Silting in Morena Reservoir, San Diego County, Calif. [s.n.], 1939.
Warning: These citations may not always be 100% accurate.