@misc{indiciae91bc47042524,
  title = {Aeromagnetic map of the Chatham and parts of the Roselle and Plainfield quadrangles, Morris, Union, Essex, and Somerset Counties, New Jersey},
  author = {John R. Henderson and Natalie S. Tyson and Sybil Gilchrist},
  year = {1958},
  doi = {10.3133/gp175},
  url = {https://pubs.usgs.gov/publication/gp175},
  note = {Source identifier: gp175}
}