APA (7th ed.) Citation

Swadley, W. C. (1978). Geologic map of part of the Madison West quadrangle, Trimble County, Kentucky. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Swadley, W. C. Geologic Map of Part of the Madison West Quadrangle, Trimble County, Kentucky. Reston, Va.: U.S. Geological Survey, 1978.

MLA (9th ed.) Citation

Swadley, W. C. Geologic Map of Part of the Madison West Quadrangle, Trimble County, Kentucky. U.S. Geological Survey, 1978.