@misc{indiciae7e733213bf48,
  title = {Water quality of the tidal Potomac River and Estuary; hydrologic data report supplement, 1979 through 1981 water years},
  author = {R.H. Coupe and W.E. Webb},
  year = {1984},
  doi = {10.3133/ofr84132},
  url = {https://pubs.usgs.gov/publication/ofr84132},
  note = {Source identifier: ofr84132}
}