@misc{indiciaebd38cc99b03c,
  title = {Geology and ground-water resources of the Dalles region, Oregon},
  author = {A. M. Piper},
  year = {1932},
  doi = {10.3133/wsp659b},
  url = {https://pubs.usgs.gov/publication/wsp659B},
  note = {Source identifier: wsp659B}
}