@misc{indiciae6a68c38ac6f7,
  title = {Generalized isopach map of the ledge sandstone member of the Ivishak Formation, eastern North Slope petroleum province},
  author = {J.A. Levorsen and G. H. Pessel and I.L. Tailleur},
  year = {1978},
  doi = {10.3133/mf928p},
  url = {https://pubs.usgs.gov/publication/mf928P},
  note = {Source identifier: mf928P}
}