Harris, L. D. (1964). Geology of the Sulphur Lick quadrangle, Kentucky. U.S. Geological Survey.
Chicago Style (17th ed.) CitationHarris, Leonard D. Geology of the Sulphur Lick Quadrangle, Kentucky. Reston, Va.: U.S. Geological Survey, 1964.
MLA (9th ed.) CitationHarris, Leonard D. Geology of the Sulphur Lick Quadrangle, Kentucky. U.S. Geological Survey, 1964.
Warning: These citations may not always be 100% accurate.