@misc{indiciaea2082d05f7a6,
  title = {Water quality in the tidal Potomac River and estuary, hydrologic data report, 1979 water year},
  author = {Stephen F. Blanchard and D. C. Hahl},
  year = {1981},
  doi = {10.3133/ofr811074},
  url = {https://pubs.usgs.gov/publication/ofr811074},
  note = {Source identifier: ofr811074}
}