@misc{indiciae7cc1022d0d7a,
  title = {Geologic map and cross sections showing configurations of bedrock surfaces, Broken Bow 1° x 2° quadrangle, east-central Nebraska},
  author = {V. L. Souders},
  year = {2000},
  doi = {10.3133/i2725},
  url = {https://pubs.usgs.gov/publication/i2725},
  note = {Source identifier: i2725}
}