@misc{indiciae165f0c39f58e,
  title = {Reconnaissance geologic map of the Adel quadrangle, Lake, Harney, and Malheur Counties, Oregon},
  author = {G. W. Walker and C.A. Repenning},
  year = {1965},
  doi = {10.3133/i446},
  url = {https://pubs.usgs.gov/publication/i446},
  note = {Source identifier: i446}
}