@misc{indiciae50e5fb8a4d53,
  title = {Publications of the U.S. Geological Survey, 1991},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1991},
  doi = {10.3133/70043732},
  url = {https://pubs.usgs.gov/publication/70043732},
  note = {Source identifier: 70043732}
}