@misc{indiciae43345646a189,
  title = {Generalized isopach map of shale in the Colville Group, eastern North Slope petroleum province, Alaska},
  author = {G. H. Pessel and I.L. Tailleur and K. J. Bird},
  year = {1978},
  doi = {10.3133/mf928e},
  url = {https://pubs.usgs.gov/publication/mf928E},
  note = {Source identifier: mf928E}
}