APA (7th ed.) Citation

Geological Survey (U.S.), Massachusetts. Department of Public Works, & Hadley, J. B. (1949). Geologic map of the Mount Grace quadrangle, Massachusetts: Bedrock geology. U.S. Geolgical Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), Massachusetts. Department of Public Works, and Jarvis B. Hadley. Geologic Map of the Mount Grace Quadrangle, Massachusetts: Bedrock Geology. Reston, Va.: U.S. Geolgical Survey, 1949.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Geologic Map of the Mount Grace Quadrangle, Massachusetts: Bedrock Geology. U.S. Geolgical Survey, 1949.