@misc{indiciaeb414c65715e2,
  title = {Preliminary report on the ground-water resources of the Tualatin Valley, Oregon},
  author = {Donald H. Hart and Reuben Clair Newcomb},
  year = {1956},
  doi = {10.3133/ofr5559},
  url = {https://pubs.usgs.gov/publication/ofr5559},
  note = {Source identifier: ofr5559}
}