APA (7th ed.) Citation

Peterson, W. L. (1977). Geologic map of the Mackville quadrangle, central Kentucky. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Peterson, Warren Lee. Geologic Map of the Mackville Quadrangle, Central Kentucky. Reston, Va.: U.S. Geological Survey, 1977.

MLA (9th ed.) Citation

Peterson, Warren Lee. Geologic Map of the Mackville Quadrangle, Central Kentucky. U.S. Geological Survey, 1977.

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