@misc{indiciae193e32c3c7b0,
  title = {Aeromagnetic map of part of the Dillsburg quadrangle, Adams, York, and Cumberland Counties, Pennsylvania},
  author = {Randolph Wilson Bromery and G. L. Zandle},
  year = {1961},
  doi = {10.3133/gp277},
  url = {https://pubs.usgs.gov/publication/gp277},
  note = {Source identifier: gp277}
}