@misc{indiciae483da7819e8b,
  title = {Preliminary reconnaissance geologic map of Ambler River quadrangle, Alaska},
  author = {G. H. Pessel and William Peters Brosge},
  year = {1977},
  doi = {10.3133/ofr7728},
  url = {https://pubs.usgs.gov/publication/ofr7728},
  note = {Source identifier: ofr7728}
}