@misc{indiciae71efdb9d2067,
  title = {Occurrence of selenium in sulfides from some sedimentary rocks of the western United States},
  author = {R. G. Coleman and Maryse Helen Delevaux},
  year = {1957},
  doi = {10.2113/gsecongeo.52.5.499},
  url = {https://pubs.usgs.gov/publication/70216346},
  note = {Source identifier: 70216346}
}