@misc{indiciae66a772d7e063,
  title = {Aeromagnetic map of the Monson quadrangle, Hampden County, Massachusetts, and Tolland County, Connecticut},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1968},
  doi = {10.3133/gp630},
  url = {https://pubs.usgs.gov/publication/gp630},
  note = {Source identifier: gp630}
}