@misc{indiciae76cfdffa8be1,
  title = {Preliminary total intensity aeromagnetic map of part of the Somerville quadrangle, New Jersey},
  author = {J. R. Henderson},
  year = {1953},
  doi = {10.3133/ofr53119},
  url = {https://pubs.usgs.gov/publication/ofr53119},
  note = {Source identifier: ofr53119}
}