@misc{indiciae4d38efaf2977,
  title = {Geologic map of the Scopus Quadrangle, Bollinger County, Missouri},
  author = {D.H. Amos},
  year = {1987},
  doi = {10.3133/mf1910},
  url = {https://pubs.usgs.gov/publication/mf1910},
  note = {Source identifier: mf1910}
}