@misc{indiciaea47afa7c5acf,
  title = {Preliminary geologic map of the Big Delta quadrangle, Alaska},
  author = {Florence R. Weber and H.L. Foster and T. E. Keith and Cynthia Dusel-Bacon},
  year = {1978},
  doi = {10.3133/ofr78529a},
  url = {https://pubs.usgs.gov/publication/ofr78529A},
  note = {Source identifier: ofr78529A}
}