@misc{indiciae1e34b59aa6fe,
  title = {Geologic map of the Brooks Range, Alaska},
  author = {D. J. Grybeck and H. M. Beikman and W. P. Brosge and I.L. Tailleur and C. G. Mull},
  year = {1977},
  doi = {10.3133/ofr77166b},
  url = {https://pubs.usgs.gov/publication/ofr77166B},
  note = {Source identifier: ofr77166B}
}