@misc{indiciaef284c6acd063,
  title = {Trace-metal variation in soils and sagebrush in the Powder River Basin, Wyoming and Montana},
  author = {Jon J. Connor and John R. Keith and Barbara M. Anderson},
  year = {1976},
  url = {https://pubs.usgs.gov/publication/70162512},
  note = {Source identifier: 70162512}
}