@misc{indiciae8915e4a5ecef,
  title = {Generalized isopach map of the Ivishak Formation, eastern North Slope petroleum province, Alaska},
  author = {J.A. Levorsen and G. H. Pessel and R.D. Carter and I.L. Tailleur},
  year = {1978},
  doi = {10.3133/mf928q},
  url = {https://pubs.usgs.gov/publication/mf928Q},
  note = {Source identifier: mf928Q}
}