@misc{indiciae5df9e4bbcbac,
  title = {Distribution of copper and other metals in gully sediments of part of Okanogan County, Washington},
  author = {Kenneth F. Fox and C. Dean Rinehart},
  year = {1972},
  url = {https://pubs.usgs.gov/publication/70047772},
  note = {Source identifier: 70047772}
}