@misc{indiciae01142e39e1ee,
  title = {Aeromagnetic map of the Seneca and part of the Sterling quadrangles, Montgomery County, Maryland, and Loudoun and Fairfax Counties, Virginia},
  author = {Jean Blanchett and N.S. Tyson and E.F. McGowan},
  year = {1963},
  doi = {10.3133/gp396},
  url = {https://pubs.usgs.gov/publication/gp396},
  note = {Source identifier: gp396}
}