TY - RPRT TI - Aeromagnetic map of the Ansonia quadrangle, New Haven and Fairfield Counties, Connecticut AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1973 DO - 10.3133/gp872 UR - https://pubs.usgs.gov/publication/gp872 ID - gp872 ER -