@misc{indiciae964322ca2b3e,
  title = {A lithologic log of the Oak Grove core, northeastern Virginia},
  author = {James R. Estabrook and Juergen Reinhardt},
  year = {1978},
  doi = {10.3133/ofr78855},
  url = {https://pubs.usgs.gov/publication/ofr78855},
  note = {Source identifier: ofr78855}
}