Williams, D., Thompson, C. M., & Jacobs, J. L. Soil survey of Cameron County, Texas. Dept. of Agriculture, Soil Conservation Service, 1977.
Chicago Style (17th ed.) CitationWilliams, DeWayne, Charles M. Thompson, and Jerry L. Jacobs. Soil Survey of Cameron County, Texas. [Washington]: Dept. of Agriculture, Soil Conservation Service, 1977.
MLA (9th ed.) CitationWilliams, DeWayne, et al. Soil Survey of Cameron County, Texas. Dept. of Agriculture, Soil Conservation Service, 1977.
Warning: These citations may not always be 100% accurate.