@misc{indiciaeacc30d69b90a,
  title = {Preliminary geologic map of the Eagle B-1 and C-1 quadrangles, Alaska},
  author = {Helen L. Foster and Terry C. Keith},
  year = {1968},
  doi = {10.3133/ofr68103},
  url = {https://pubs.usgs.gov/publication/ofr68103},
  note = {Source identifier: ofr68103}
}