@misc{indiciae6e12afb0ba05,
  title = {Preliminary geologic map of the South Boston 30 x 60 minute quadrangle, Virginia and North Carolina},
  author = {J. Wright Horton and J. D. Peper and J. D. Marr and W.C. Burton and P. E. Sacks},
  year = {1993},
  doi = {10.3133/ofr93244},
  url = {https://pubs.usgs.gov/publication/ofr93244},
  note = {Source identifier: ofr93244}
}