@misc{indiciaeab15ca3defcc,
  title = {Geological Survey research 1971, Chapter B},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1971},
  doi = {10.3133/pp750b},
  url = {https://pubs.usgs.gov/publication/pp750B},
  note = {Source identifier: pp750B}
}