APA (7th ed.) Citation

Ping, R. G., & Sergeant, R. E. (1978). Geologic map of the Fount quadrangle, Knox County, Kentucky. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Ping, Russell G., and Richard E. Sergeant. Geologic Map of the Fount Quadrangle, Knox County, Kentucky. Reston, Va.: U.S. Geological Survey, 1978.

MLA (9th ed.) Citation

Ping, Russell G., and Richard E. Sergeant. Geologic Map of the Fount Quadrangle, Knox County, Kentucky. U.S. Geological Survey, 1978.