@misc{indiciae8a4d6d2e834c,
  title = {Papers on the conservation of mineral resources (reprinted from report of the National Conservation Commission, February, 1909)},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1909},
  doi = {10.3133/b394},
  url = {https://pubs.usgs.gov/publication/b394},
  note = {Source identifier: b394}
}