@misc{indiciae692bf28d7ecf,
  title = {Geology of the Nazareth Quadrangle, Northampton County, Pennsylvania},
  author = {John M. Aaron},
  year = {1975},
  doi = {10.3133/ofr7592},
  url = {https://pubs.usgs.gov/publication/ofr7592},
  note = {Source identifier: ofr7592}
}