@misc{indiciae394bc8cbe7ba,
  title = {Preliminary report on the ancestral Potomac River deposits in Fairfax County, Virginia, and their potential hydrogeologic significance},
  author = {A.J. Froelich and Richard H. Johnston and William H. Langer},
  year = {1978},
  doi = {10.3133/ofr78544},
  url = {https://pubs.usgs.gov/publication/ofr78544},
  note = {Source identifier: ofr78544}
}