APA (7th ed.) Citation

Geological Survey (U.S.), North Dakota Geological Survey, South Dakota Geological Survey, Minnesota Geological Survey, & Fullerton, D. S. (1995). Quaternary geologic map of the Dakotas 4⁰ x 6⁰ quadrangle, United States. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), North Dakota Geological Survey, South Dakota Geological Survey, Minnesota Geological Survey, and David S. Fullerton. Quaternary Geologic Map of the Dakotas 4⁰ X 6⁰ Quadrangle, United States. Reston, VA: The Survey, 1995.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Quaternary Geologic Map of the Dakotas 4⁰ X 6⁰ Quadrangle, United States. The Survey, 1995.