Mangum, A. W., & Lee, O., Jr. (1908). Soil survey of the Laredo area, Texas. U.S. Department of Agriculture, Bureau of Soils.
Chicago Style (17th ed.) CitationMangum, A. W., and Ora Lee, Jr. Soil Survey of the Laredo Area, Texas. [Washington, D.C.]: U.S. Department of Agriculture, Bureau of Soils, 1908.
MLA (9th ed.) CitationMangum, A. W., and Ora Lee, Jr. Soil Survey of the Laredo Area, Texas. U.S. Department of Agriculture, Bureau of Soils, 1908.
Warning: These citations may not always be 100% accurate.