@misc{indiciae3a4c735680d0,
  title = {The United States Geological Survey},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1974},
  doi = {10.3133/7000076},
  url = {https://pubs.usgs.gov/publication/7000076},
  note = {Source identifier: 7000076}
}