@misc{indiciae54019293d3e5,
  title = {Preliminary geologic map of the Boyds Quadrangle, Ferry and Stevens counties, Washington},
  author = {Joseph Raymond Wilson},
  year = {1980},
  doi = {10.3133/ofr80983},
  url = {https://pubs.usgs.gov/publication/ofr80983},
  note = {Source identifier: ofr80983}
}