@misc{indiciae5b9f16183a0f,
  title = {Lithology and thickness of the Traverse group in the Michigan basin},
  author = {G. V. Cohee},
  year = {1947},
  doi = {10.3133/oc28},
  url = {https://pubs.usgs.gov/publication/oc28},
  note = {Source identifier: oc28}
}