@misc{indiciae29bf6d0403f2,
  title = {Geochemical survey of the western energy regions, 4th annual progress report, July 1977},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1977},
  doi = {10.3133/ofr77872},
  url = {https://pubs.usgs.gov/publication/ofr77872},
  note = {Source identifier: ofr77872}
}