APA (7th ed.) Citation

Kehn, T. M. (1977). Geologic map of the Kirkmansville quadrangle, Muhlenburg and Todd Counties, Kentucky. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Kehn, Thomas M. Geologic Map of the Kirkmansville Quadrangle, Muhlenburg and Todd Counties, Kentucky. Reston, Va.: U.S. Geological Survey, 1977.

MLA (9th ed.) Citation

Kehn, Thomas M. Geologic Map of the Kirkmansville Quadrangle, Muhlenburg and Todd Counties, Kentucky. U.S. Geological Survey, 1977.