@misc{indiciae946123f8281c,
  title = {Aeromagnetic map of part of the Media quadrangle, Chester and Delaware Counties, Pennsylvania},
  author = {Randolph Wilson Bromery and G. L. Zandle},
  year = {1959},
  doi = {10.3133/gp204},
  url = {https://pubs.usgs.gov/publication/gp204},
  note = {Source identifier: gp204}
}