Ryder, R. B. (1972). Contour map of the bedrock surface, Manchester quadrangle, Connecticut. United States, Dept. of the Interior, Geological Survey.
Chicago Style (17th ed.) CitationRyder, Robert B. Contour Map of the Bedrock Surface, Manchester Quadrangle, Connecticut. Washington, D.C.: United States, Dept. of the Interior, Geological Survey, 1972.
MLA (9th ed.) CitationRyder, Robert B. Contour Map of the Bedrock Surface, Manchester Quadrangle, Connecticut. United States, Dept. of the Interior, Geological Survey, 1972.
Warning: These citations may not always be 100% accurate.