APA (7th ed.) Citation

Harwood, D. S. (1979). Geologic map of the South Sandisfield quadrangle, Massachusetts and Connecticut. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Harwood, David S. Geologic Map of the South Sandisfield Quadrangle, Massachusetts and Connecticut. Reston, Va.: U.S. Geological Survey, 1979.

MLA (9th ed.) Citation

Harwood, David S. Geologic Map of the South Sandisfield Quadrangle, Massachusetts and Connecticut. U.S. Geological Survey, 1979.