TY - RPRT TI - Aeromagnetic map of the Franklin quadrangle, Norfolk and Worcester Counties, Massachusetts, and Providence County, Rhode Island AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1971 DO - 10.3133/gp771 UR - https://pubs.usgs.gov/publication/gp771 ID - gp771 ER -