@misc{indiciae967b563680c5,
  title = {Aeromagnetic map of the Nyack quadrangle and part of the White Plains quadrangle, Bergen County, New Jersey and Rockland and Westchester Counties, New York},
  author = {P. W. Philbin and J.R. Kirby},
  year = {1964},
  doi = {10.3133/gp493},
  url = {https://pubs.usgs.gov/publication/gp493},
  note = {Source identifier: gp493}
}