@misc{indiciae3a9d6cabc35e,
  title = {Selected geologic data for the Beltsville Quadrangle, Prince Georges, Montgomery and Howard counties, Maryland},
  author = {Charles F. Withington and A.J. Froelich},
  year = {1974},
  doi = {10.3133/ofr741129},
  url = {https://pubs.usgs.gov/publication/ofr741129},
  note = {Source identifier: ofr741129}
}