@misc{indiciaeed7bc06f2094,
  title = {U.S. Geological Survey World Wide Web information},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1997},
  doi = {10.3133/fs12196},
  url = {https://pubs.usgs.gov/publication/fs12196},
  note = {Source identifier: fs12196}
}