APA (7th ed.) Citation

Gibbons, A. B. (1978). Geologic map of part of the Madison East quadrangle, Trimble and Carroll Counties, Kentucky. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Gibbons, Anthony B. Geologic Map of Part of the Madison East Quadrangle, Trimble and Carroll Counties, Kentucky. Reston, Va.: U.S. Geological Survey, 1978.

MLA (9th ed.) Citation

Gibbons, Anthony B. Geologic Map of Part of the Madison East Quadrangle, Trimble and Carroll Counties, Kentucky. U.S. Geological Survey, 1978.