TY - RPRT TI - Aeromagnetic map of the Middletown quadrangle, Middlesex, Hartford, and New Haven Counties, Connecticut AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1973 DO - 10.3133/gp856 UR - https://pubs.usgs.gov/publication/gp856 ID - gp856 ER -