APA (7th ed.) Citation

Kontis, A. L., & Mandle, R. J. (1980). Data-base system for northern Midwest regional aquifer-system analysis. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Kontis, A. L., and Richard J. Mandle. Data-base System for Northern Midwest Regional Aquifer-system Analysis. Madison, Wisconsin: U.S. Geological Survey, 1980.

MLA (9th ed.) Citation

Kontis, A. L., and Richard J. Mandle. Data-base System for Northern Midwest Regional Aquifer-system Analysis. U.S. Geological Survey, 1980.