@misc{indiciae08eba92d6efe,
  title = {Geological Survey research, 1975},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1975},
  doi = {10.3133/pp975},
  url = {https://pubs.usgs.gov/publication/pp975},
  note = {Source identifier: pp975}
}