@misc{indiciae0c4f938d8dfb,
  title = {Rhenium and other trace elements in molybdenite from the Christmas Mine area, Gila County, Arizona},
  author = {R.A. Koski},
  year = {1981},
  doi = {10.3133/ofr81154},
  url = {https://pubs.usgs.gov/publication/ofr81154},
  note = {Source identifier: ofr81154}
}