@misc{indiciae78c876c4285b,
  title = {Geologic map of the Green Bay 7.5-minute quadrangle, Prince Edward County, Virginia},
  author = {John D. Peper and Paul C. Hackley},
  year = {1999},
  doi = {10.3133/ofr99423},
  url = {https://pubs.usgs.gov/publication/ofr99423},
  note = {Source identifier: ofr99423}
}