APA (7th ed.) Citation

Ryder, R. B. (1972). Contour map of the bedrock surface, Broad Brook quadrangle, Connecticut. United States, Dept. of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Ryder, Robert B. Contour Map of the Bedrock Surface, Broad Brook Quadrangle, Connecticut. [Washington, D.C.]: United States, Dept. of the Interior, Geological Survey, 1972.

MLA (9th ed.) Citation

Ryder, Robert B. Contour Map of the Bedrock Surface, Broad Brook Quadrangle, Connecticut. United States, Dept. of the Interior, Geological Survey, 1972.