@misc{indiciae61aa9c53678c,
  title = {The Giles County, Virginia, seismogenic zone-- Seismological results and geological interpretations},
  author = {G. A. Bollinger and Russell L. Wheeler},
  year = {1982},
  doi = {10.3133/ofr82585},
  url = {https://pubs.usgs.gov/publication/ofr82585},
  note = {Source identifier: ofr82585}
}