APA (7th ed.) Citation

Harwood, D. S. (1979). Bedrock geologic map of the Norfolk quadrangle, Connecticut. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Harwood, David S. Bedrock Geologic Map of the Norfolk Quadrangle, Connecticut. Reston, Va.: U.S. Geological Survey, 1979.

MLA (9th ed.) Citation

Harwood, David S. Bedrock Geologic Map of the Norfolk Quadrangle, Connecticut. U.S. Geological Survey, 1979.