APA (7th ed.) Citation

Nichols, D. R. (1956). Geologic map of the Narragansett Pier quadrangle, Rhode Island: Bedrock geology. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Nichols, David R. Geologic Map of the Narragansett Pier Quadrangle, Rhode Island: Bedrock Geology. Washington, D.C.: U.S. Geological Survey, 1956.

MLA (9th ed.) Citation

Nichols, David R. Geologic Map of the Narragansett Pier Quadrangle, Rhode Island: Bedrock Geology. U.S. Geological Survey, 1956.