@misc{indiciae64350e131f86,
  title = {Methods for the collection of geochemical data from the sediments of the tidal Potomac River and estuary and data for 1978-1980},
  author = {S.D. Goodwin and B.I. Schultz and D.L. Parkhurst and N.S. Simon and Edward Callender},
  year = {1984},
  doi = {10.3133/ofr8474},
  url = {https://pubs.usgs.gov/publication/ofr8474},
  note = {Source identifier: ofr8474}
}