@misc{indiciaee77a797a2263,
  title = {Aeromagnetic map of the Gladstone quadrangle, Somerset, Morris, and Hunterdon Counties, New Jersey},
  author = {John R. Henderson and Natalie S. Tyson and Sybil Gilchrist},
  year = {1958},
  doi = {10.3133/gp173},
  url = {https://pubs.usgs.gov/publication/gp173},
  note = {Source identifier: gp173}
}