United States. Bureau of Chemistry and Soils & Kocher, A. E. (1929). Soil survey of Linn County, Oreg. U.S. GPO.
Chicago Style (17th ed.) CitationUnited States. Bureau of Chemistry and Soils and A. E. Kocher. Soil Survey of Linn County, Oreg. Washington: U.S. GPO, 1929.
MLA (9th ed.) CitationUnited States. Bureau of Chemistry and Soils and A. E. Kocher. Soil Survey of Linn County, Oreg. U.S. GPO, 1929.
Warning: These citations may not always be 100% accurate.