APA (7th ed.) Citation

United States. Forest Service. Emergency Rubber Project & Retzer, J. L. (1945). Soil associations, Rio Grande Plain, Texas. U.S. Dept. of Agriculture, Forest Service, Emergency Rubber Project.

Chicago Style (17th ed.) Citation

United States. Forest Service. Emergency Rubber Project and John Leonard Retzer. Soil Associations, Rio Grande Plain, Texas. [Washington, D.C.?]: U.S. Dept. of Agriculture, Forest Service, Emergency Rubber Project, 1945.

MLA (9th ed.) Citation

United States. Forest Service. Emergency Rubber Project and John Leonard Retzer. Soil Associations, Rio Grande Plain, Texas. U.S. Dept. of Agriculture, Forest Service, Emergency Rubber Project, 1945.