Geological Survey (U.S.), Kentucky Geological Survey, & Luft, S. J. (1975). Geologic map of the Berlin quadrangle, Bracken and Pendleton Counties, Kentucky. The Survey.
Chicago Style (17th ed.) CitationGeological Survey (U.S.), Kentucky Geological Survey, and Stanley Jeremie Luft. Geologic Map of the Berlin Quadrangle, Bracken and Pendleton Counties, Kentucky. Reston, Va.: The Survey, 1975.
MLA (9th ed.) CitationGeological Survey (U.S.), et al. Geologic Map of the Berlin Quadrangle, Bracken and Pendleton Counties, Kentucky. The Survey, 1975.
Warning: These citations may not always be 100% accurate.