@misc{indiciaef9e9bad90e62,
  title = {The Tertiary gravels of the Sierra Nevada of California},
  author = {Waldemar Lindgren},
  year = {1911},
  doi = {10.3133/pp73},
  url = {https://pubs.usgs.gov/publication/pp73},
  note = {Source identifier: pp73}
}