@misc{indiciae50e645db82d9,
  title = {Preliminary geologic map of the Chelan 1:100,000 quadrangle, Washington},
  author = {R. W. Tabor and V. A. Frizzell and J. T. Whetten and D. A. Swanson and G. R. Byerly and D. B. Booth and M. J. Hetherington and R. B. Waitt},
  year = {1980},
  doi = {10.3133/ofr80841},
  url = {https://pubs.usgs.gov/publication/ofr80841},
  note = {Source identifier: ofr80841}
}