@misc{indiciae5521f96aaf6f,
  title = {Trenton folio, New Jersey-Pennsylvania},
  author = {Florence Bascom and N. H. Darton and W.B. Clark and H.B. Kuemmel and B.L. Miller and R.D. Salisbury},
  year = {1909},
  doi = {10.3133/gf167},
  url = {https://pubs.usgs.gov/publication/gf167},
  note = {Source identifier: gf167}
}