@misc{indiciae18d90a71bcbd,
  title = {Geological Survey research 1960; Short papers in the geological sciences},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1960},
  doi = {10.3133/pp400b},
  url = {https://pubs.usgs.gov/publication/pp400B},
  note = {Source identifier: pp400B}
}