@misc{indiciae8e4ad2acc9c8,
  title = {Chemical and physical characteristics of Delaware River water from Trenton, New Jersey to Marcus Hook, Pennsylvania},
  author = {C.N. Durfor and Walter B. Keighton},
  year = {1953},
  doi = {10.3133/ofr5356},
  url = {https://pubs.usgs.gov/publication/ofr5356},
  note = {Source identifier: ofr5356}
}