APA (7th ed.) Citation

Guckian, W. J., & Garcia, R. N. (1979). Soil survey of San Patricio and Aransas Counties, Texas. [National Cooperative Soil Survey].

Chicago Style (17th ed.) Citation

Guckian, William J., and Ramon N. Garcia. Soil Survey of San Patricio and Aransas Counties, Texas. [Washington?]: [National Cooperative Soil Survey], 1979.

MLA (9th ed.) Citation

Guckian, William J., and Ramon N. Garcia. Soil Survey of San Patricio and Aransas Counties, Texas. [National Cooperative Soil Survey], 1979.