APA (7th ed.) Citation

Lewis, R. Q., Taylor, A. R., & Weir, G. W. (1973). Geologic map of the Bobtown quadrangle, Pulaski County, Kentucky. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Lewis, Richard Quintin, Alfred R. Taylor, and Gordon W. Weir. Geologic Map of the Bobtown Quadrangle, Pulaski County, Kentucky. Washington, D.C.: U.S. Geological Survey, 1973.

MLA (9th ed.) Citation

Lewis, Richard Quintin, et al. Geologic Map of the Bobtown Quadrangle, Pulaski County, Kentucky. U.S. Geological Survey, 1973.