@misc{indiciae439deed46b46,
  title = {U.S. Geological Survey: earth science in the public service},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1987},
  doi = {10.3133/7000055},
  url = {https://pubs.usgs.gov/publication/7000055},
  note = {Source identifier: 7000055}
}