@misc{indiciae2d16e6e65284,
  title = {Preliminary geologic map and sections of the magnesite belt, Stevens County, Washington},
  author = {Ian Campbell and J.S. Loofbourow},
  year = {1957},
  doi = {10.3133/mf117},
  url = {https://pubs.usgs.gov/publication/mf117},
  note = {Source identifier: mf117}
}