APA (7th ed.) Citation

Geological Survey (U.S.), Ahlbrandt, T. S., Fryberger, S. G., Hanley, J. H., & Bradbury, J. P. (1980). Geologic and paleoecologic studies of the Nebraska Sand Hills. Dept. of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), Thomas S. Ahlbrandt, Steven G. Fryberger, John H. Hanley, and J. Platt Bradbury. Geologic and Paleoecologic Studies of the Nebraska Sand Hills. [Reston, Va.]: Dept. of the Interior, Geological Survey, 1980.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Geologic and Paleoecologic Studies of the Nebraska Sand Hills. Dept. of the Interior, Geological Survey, 1980.