@misc{indiciae943092438737,
  title = {Environmental geochemistry},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1969},
  doi = {10.3133/ofr72398\_72403},
  url = {https://pubs.usgs.gov/publication/ofr72398\_72403},
  note = {Source identifier: ofr72398\_72403}
}