APA (7th ed.) Citation

Geological Survey (U.S.), Kentucky Geological Survey, & Kepferle, R. C. (1963). Geology of the Cecilia quadrangle, Kentucky. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), Kentucky Geological Survey, and Roy Clark Kepferle. Geology of the Cecilia Quadrangle, Kentucky. Washington, D.C.: The Survey, 1963.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Geology of the Cecilia Quadrangle, Kentucky. The Survey, 1963.