APA (7th ed.) Citation

Geological Survey (U.S.) & McDowell, R. C. (1998). Geologic map of the Greer quadrangle, Oregon County, Missouri. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and Robert C. McDowell. Geologic Map of the Greer Quadrangle, Oregon County, Missouri. [Reston, Va.]: The Survey, 1998.

MLA (9th ed.) Citation

Geological Survey (U.S.) and Robert C. McDowell. Geologic Map of the Greer Quadrangle, Oregon County, Missouri. The Survey, 1998.