@misc{indiciaeb2a3c7648253,
  title = {Preliminary geologic map of the Newark Quadrangle, New Jersey, and Pennsylvania},
  author = {Avery Drake and P. T. Lyttle and James Patrick Owens},
  year = {1978},
  doi = {10.3133/ofr78595},
  url = {https://pubs.usgs.gov/publication/ofr78595},
  note = {Source identifier: ofr78595}
}