APA (7th ed.) Citation

Pryor, W. A. (1956). Groundwater geology in southern Illinois: A preliminary geologic report. [publisher not identified].

Chicago Style (17th ed.) Citation

Pryor, Wayne Arthur. Groundwater Geology in Southern Illinois: A Preliminary Geologic Report. Urbana: [publisher not identified], 1956.

MLA (9th ed.) Citation

Pryor, Wayne Arthur. Groundwater Geology in Southern Illinois: A Preliminary Geologic Report. [publisher not identified], 1956.

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