@misc{indiciae72f7f034f524,
  title = {Copper mosses as indicators of metal concentrations},
  author = {Hansford T. Shacklette},
  year = {1967},
  doi = {10.3133/b1198g},
  url = {https://pubs.usgs.gov/publication/b1198G},
  note = {Source identifier: b1198G}
}