APA (7th ed.) Citation

Iowa Geological Survey & Geological Survey (U.S.). (1942). Water-supply bulletin. State of Iowa.

Chicago Style (17th ed.) Citation

Iowa Geological Survey and Geological Survey (U.S.). Water-supply Bulletin. Des Moines, Iowa: State of Iowa, 1942.

MLA (9th ed.) Citation

Iowa Geological Survey and Geological Survey (U.S.). Water-supply Bulletin. State of Iowa, 1942.

Warning: These citations may not always be 100% accurate.