@misc{indiciae6d998a8eb0e3,
  title = {Airborne chemical elements in Spanish moss},
  author = {H.T. Shacklette and J. J. Connor},
  year = {1973},
  doi = {10.3133/pp574e},
  url = {https://pubs.usgs.gov/publication/pp574E},
  note = {Source identifier: pp574E}
}