Geological Survey (U.S.), Kentucky Geological Survey, & McDowell, R. C. (1975). Geologic map of the Farmers quadrangle, east-central Kentucky. The Survey.
Chicago Style (17th ed.) CitationGeological Survey (U.S.), Kentucky Geological Survey, and Robert C. McDowell. Geologic Map of the Farmers Quadrangle, East-central Kentucky. Reston, Va.: The Survey, 1975.
MLA (9th ed.) CitationGeological Survey (U.S.), et al. Geologic Map of the Farmers Quadrangle, East-central Kentucky. The Survey, 1975.
Warning: These citations may not always be 100% accurate.