@misc{indiciae322b67031fea,
  title = {Aeromagnetic map of the Leola quadrangle, Lancaster County, Pennsylvania},
  author = {Randolph Wilson Bromery and G. L. Zandle},
  year = {1961},
  doi = {10.3133/gp243},
  url = {https://pubs.usgs.gov/publication/gp243},
  note = {Source identifier: gp243}
}