@misc{indiciae95a0c110201a,
  title = {Aeromagnetic map of the Wilmington quadrangle, Middlesex and Essex Counties, Massachusetts},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1970},
  doi = {10.3133/gp720},
  url = {https://pubs.usgs.gov/publication/gp720},
  note = {Source identifier: gp720}
}