APA (7th ed.) Citation

Geological Survey (U.S.). Water Resources Division, Geological Survey (U.S.). Water Resources Division. Illinois District, & Garrelts, M. L. Water resources activities in Illinois. The Division.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.). Water Resources Division, Geological Survey (U.S.). Water Resources Division. Illinois District, and Mary L. Garrelts. Water Resources Activities in Illinois. Champaign, IL: The Division.

MLA (9th ed.) Citation

Geological Survey (U.S.). Water Resources Division, et al. Water Resources Activities in Illinois. The Division.