@misc{indiciaed199dd8a11c9,
  title = {Preliminary report on Laterite Deposits and Occurrences in the Portland Region, Oregon},
  author = {Gordon L. Bell},
  year = {1945},
  doi = {10.3133/ofr456},
  url = {https://pubs.usgs.gov/publication/ofr456},
  note = {Source identifier: ofr456}
}