APA (7th ed.) Citation

Tychsen, P. C., Jochens, E. R., & Vorhis, R. C. (1955). Reconnaissance of geology and ground water in the lower Grand River Valley, South Dakota. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Tychsen, P. C., E. R. Jochens, and Robert C. Vorhis. Reconnaissance of Geology and Ground Water in the Lower Grand River Valley, South Dakota. [Washington, D.C.]: United States Department of the Interior, Geological Survey, 1955.

MLA (9th ed.) Citation

Tychsen, P. C., et al. Reconnaissance of Geology and Ground Water in the Lower Grand River Valley, South Dakota. United States Department of the Interior, Geological Survey, 1955.