TY - RPRT TI - A geologic map of the sea floor in western Massachusetts Bay, constructed from digital sidescan-sonar images, photography, and sediment samples AU - Michael H. Bothner AU - C.M. Parmenter AU - D.C. Twichell AU - C. F. Polloni AU - H.J. Knebel PY - 1992 DO - 10.3133/ds3 UR - https://pubs.usgs.gov/publication/ds3 ID - ds3 ER -