APA (7th ed.) Citation

Geological Survey (U.S.), Kentucky Geological Survey, & Simmons, G. C. (1967). Geologic map of the Richmond North quadrangle, Madison and Fayette Counties, Kentucky. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), Kentucky Geological Survey, and George Clarke Simmons. Geologic Map of the Richmond North Quadrangle, Madison and Fayette Counties, Kentucky. Washington, D.C.: U.S. Geological Survey, 1967.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Geologic Map of the Richmond North Quadrangle, Madison and Fayette Counties, Kentucky. U.S. Geological Survey, 1967.