APA (7th ed.) Citation

Luft, S. J. (1972). Geologic map of the Butler quadrangle, Pendleton and Campbell counties, Kentucky. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Luft, Stanley Jeremie. Geologic Map of the Butler Quadrangle, Pendleton and Campbell Counties, Kentucky. Washington, D.C.: U.S. Geological Survey, 1972.

MLA (9th ed.) Citation

Luft, Stanley Jeremie. Geologic Map of the Butler Quadrangle, Pendleton and Campbell Counties, Kentucky. U.S. Geological Survey, 1972.