@misc{indiciae482a6fee7b5d,
  title = {Physical and chemical properties of the Potomac River and environs, August-September 1977},
  author = {Richard E. Smith and Raynol E. Herndon},
  year = {1979},
  doi = {10.3133/ofr791635},
  url = {https://pubs.usgs.gov/publication/ofr791635},
  note = {Source identifier: ofr791635}
}