@misc{indiciae740c9d2f3241,
  title = {Geology of the Coffman 7 1/2' quadrangle, Ste. Genevieve County, Missouri},
  author = {R.W. Harrison and A. P. Schultz},
  year = {1994},
  doi = {10.3133/ofr94419},
  url = {https://pubs.usgs.gov/publication/ofr94419},
  note = {Source identifier: ofr94419}
}