APA (7th ed.) Citation

Knobel, E. W., Chapman, J. E., Hopper, T. H., Peightal, M. F., & Walster, H. L. (1929). Soil survey of Cass County, North Dakota. [U.S. Govt. print. off].

Chicago Style (17th ed.) Citation

Knobel, E. W., James Everett Chapman, T. H. Hopper, M. F. Peightal, and Harlow Leslie Walster. Soil Survey of Cass County, North Dakota. Washington: [U.S. Govt. print. off], 1929.

MLA (9th ed.) Citation

Knobel, E. W., et al. Soil Survey of Cass County, North Dakota. [U.S. Govt. print. off], 1929.