TY - RPRT TI - Maps showing bottom sediments on the Continental Shelf of the northeastern United States – Cape Ann, Massachusetts to Casco Bay, Maine AU - D. W. Folger AU - C. J. O’Hara AU - James M. Robb PY - 1975 DO - 10.3133/i839 UR - https://pubs.usgs.gov/publication/i839 ID - i839 ER -