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Ackerman, S.D., Butman, Bradford, Barnhardt, W.A., Danforth, W.W., and Crocker, J.M., 2006, High-resolution geologic mapping of the inner continental shelf—Boston Harbor and approaches, Massachusetts: U.S. Geological Survey Open-File Report 2006–1008, 1 DVD-ROM. [Also available at https://pubs.usgs.gov/of/2006/1008/.]

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Andrews, B.D., Ackerman, S.D., Baldwin, W.E., Foster, D.S., and Schwab, W.C., 2013, High-resolution geophysical data from the inner continental shelf at Vineyard Sound, Massachusetts: U.S. Geological Survey Open-File Report 2012–1006, 1 DVD-ROM. [Also available at https://pubs.usgs.gov/of/2012/1006/.]

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Barnhardt, W.A., Andrews, B.D., Ackerman, S.D., Baldwin, W.E., and Hein, C.J., 2009, High-resolution geologic mapping of the inner continental shelf—Cape Ann to Salisbury Beach, Massachusetts: U.S. Geological Survey Open-File Report 2007–1373, 1 DVD-ROM. [Also available at https://pubs.usgs.gov/of/2007/1373/.]

Barnhardt, W.A., Andrews, B.D., and Butman, Bradford, 2006, High-resolution geologic mapping of the inner continental shelf—Nahant to Gloucester, Massachusetts: U.S. Geological Survey Open-File Report 2005–1293, 1 DVD-ROM. [Also available at https://pubs.usgs.gov/of/2005/1293/.]

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