@misc{indiciaef3ab2766e2c5,
  title = {Geologic map of the Fremont quadrangle, Shannon, Carter, and Oregon Counties, Missouri},
  author = {Randall C. Orndorff},
  year = {2003},
  doi = {10.3133/i2775},
  url = {https://pubs.usgs.gov/publication/i2775},
  note = {Source identifier: i2775}
}