@misc{indiciae8dcb0d71ad91,
  title = {The Lance Formation: Petrography and stratigraphy, Powder River basin and nearby basins, Wyoming and Montana},
  author = {Carol Waite Connor},
  year = {1992},
  doi = {10.3133/b1917i},
  url = {https://pubs.usgs.gov/publication/b1917I},
  note = {Source identifier: b1917I}
}