@misc{indiciae66bf72f3f64a,
  title = {New information resources of the U.S. Geological Survey Library System, January 1990},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1990},
  doi = {10.3133/ofr90400a},
  url = {https://pubs.usgs.gov/publication/ofr90400A},
  note = {Source identifier: ofr90400A}
}