O'Leary, D. W. (1979). Surficial geologic map of the Marlborough quadrangle, Connecticut. U.S. Geological Survey.
Chicago Style (17th ed.) CitationO'Leary, Dennis W. Surficial Geologic Map of the Marlborough Quadrangle, Connecticut. Reston, Va.: U.S. Geological Survey, 1979.
MLA (9th ed.) CitationO'Leary, Dennis W. Surficial Geologic Map of the Marlborough Quadrangle, Connecticut. U.S. Geological Survey, 1979.
Warning: These citations may not always be 100% accurate.