@misc{indiciae062824279b29, title = {Aeromagnetic map of parts of the Niantic and New London quadrangles, New London County, Connecticut}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1973}, doi = {10.3133/gp879}, url = {https://pubs.usgs.gov/publication/gp879}, note = {Source identifier: gp879} }