@misc{indiciaec5a59601ea24,
  title = {Quantitative assessment of future development of cooper/silver resources in the Kootenai National Forest, Idaho/Montana: Part I-Estimation of the copper and silver endowments},
  author = {G.T. Spanski},
  year = {1992},
  doi = {10.1007/bf01782270},
  url = {https://pubs.usgs.gov/publication/70017291},
  note = {Source identifier: 70017291}
}