APA (7th ed.) Citation

Voelker, D. C. (1989). Quality of water from public-supply wells in principal aquifers of Illinois, 1984-87. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Voelker, David C. Quality of Water from Public-supply Wells in Principal Aquifers of Illinois, 1984-87. Urbana, Illinois: U.S. Geological Survey, 1989.

MLA (9th ed.) Citation

Voelker, David C. Quality of Water from Public-supply Wells in Principal Aquifers of Illinois, 1984-87. U.S. Geological Survey, 1989.

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