APA (7th ed.) Citation

Aber, J. S., Bluemle, J. P., Sauchyn, D. J., & Ackerman, D. L. (1991). Great Plains glaciotectonics. North Dakota Geological Survey.

Chicago Style (17th ed.) Citation

Aber, James S., John P. Bluemle, David J. Sauchyn, and David L. Ackerman. Great Plains Glaciotectonics. [Grand Forks, N.D.]: North Dakota Geological Survey, 1991.

MLA (9th ed.) Citation

Aber, James S., et al. Great Plains Glaciotectonics. North Dakota Geological Survey, 1991.