@misc{indiciae1d440e1b61ed,
  title = {Stratigraphy and nomenclature of some Upper Cretaceous and lower Tertiary rocks in south-central Wyoming},
  author = {James R. Gill and E.A. Merewether and William Aubrey Cobban},
  year = {1970},
  doi = {10.3133/pp667},
  url = {https://pubs.usgs.gov/publication/pp667},
  note = {Source identifier: pp667}
}