@misc{indiciaedb836bcfcaf5,
  title = {Geologic map of the Burfordville Quadrangle, Cape Girardeau and Bollinger counties, Missouri},
  author = {D.H. Amos},
  year = {1982},
  doi = {10.3133/mf1385},
  url = {https://pubs.usgs.gov/publication/mf1385},
  note = {Source identifier: mf1385}
}