@misc{indiciae619930806c1e,
  title = {Configuration of Precambrian rocks in southeastern New York and adjacent New England from aeromagnetic data},
  author = {David S. Harwood and Isidore Zietz},
  year = {1974},
  url = {https://pubs.usgs.gov/publication/70247302},
  note = {Source identifier: 70247302}
}