APA (7th ed.) Citation

United States. Bureau of Chemistry and Soils, Colorado Agricultural Experiment Station, Harper, W. G., Acott, L., & Frahm, E. (1935). Soil survey of the Brighton area, Colorado. U.S. Dept. of Agriculture.

Chicago Style (17th ed.) Citation

United States. Bureau of Chemistry and Soils, Colorado Agricultural Experiment Station, W. G. Harper, Lloyd Acott, and Elmer Frahm. Soil Survey of the Brighton Area, Colorado. Washington, D.C.: U.S. Dept. of Agriculture, 1935.

MLA (9th ed.) Citation

United States. Bureau of Chemistry and Soils, et al. Soil Survey of the Brighton Area, Colorado. U.S. Dept. of Agriculture, 1935.