APA (7th ed.) Citation

Trace, R. D. (1977). Geologic map of the Dawson Springs SE quadrangle, Christian and Hopkins counties, Kentucky. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Trace, Robert Denny. Geologic Map of the Dawson Springs SE Quadrangle, Christian and Hopkins Counties, Kentucky. Reston, Va.: U.S. Geological Survey, 1977.

MLA (9th ed.) Citation

Trace, Robert Denny. Geologic Map of the Dawson Springs SE Quadrangle, Christian and Hopkins Counties, Kentucky. U.S. Geological Survey, 1977.