@misc{indiciae4837f42a1c7a,
  title = {Assessment of the mineral resources for the Adel 1 degree by 2 degrees quadrangle, Oregon},
  author = {Walter J. Bawiec and Gerda A. Abrams and Carol A. Finn and James A. Pitkin and Jean L. Ryder and Steven M. Smith and Paul K. Theobald and Dean B. Vander Meulen and George W. Walker},
  year = {1990},
  doi = {10.3133/ofr89177},
  url = {https://pubs.usgs.gov/publication/ofr89177},
  note = {Source identifier: ofr89177}
}