APA (7th ed.) Citation

Geological Survey (U.S.), State Geological and Natural History Survey of Connecticut, & Walsh, G. J. (2006). Preliminary bedrock geologic map of the Old Lyme quadrangle, New London and Middlesex Counties, Connecticut (V. 1.0.). U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), State Geological and Natural History Survey of Connecticut, and Gregory J. Walsh. Preliminary Bedrock Geologic Map of the Old Lyme Quadrangle, New London and Middlesex Counties, Connecticut. V. 1.0. [Reston, Va.]: U.S. Geological Survey, 2006.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Preliminary Bedrock Geologic Map of the Old Lyme Quadrangle, New London and Middlesex Counties, Connecticut. V. 1.0. U.S. Geological Survey, 2006.