APA (7th ed.) Citation

DeLaney, A. O., & Englund, K. J. (1973). Geologic map of the Ault quadrangle, northeastern Kentucky. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

DeLaney, A. Otis, and Kenneth John Englund. Geologic Map of the Ault Quadrangle, Northeastern Kentucky. Washington, D.C.: U.S. Geological Survey, 1973.

MLA (9th ed.) Citation

DeLaney, A. Otis, and Kenneth John Englund. Geologic Map of the Ault Quadrangle, Northeastern Kentucky. U.S. Geological Survey, 1973.