@misc{indiciaefe9205aec7b9,
  title = {Impact of the Summitville Mine on irrigation water, agricultural soils, and alfalfa in the southwestern San Luis Valley, Colorado},
  author = {J. A. Erdman and K. S. Smith},
  year = {1993},
  doi = {10.3133/ofr93616},
  url = {https://pubs.usgs.gov/publication/ofr93616},
  note = {Source identifier: ofr93616}
}