@misc{indiciae5debcbea20cd,
  title = {Geologic map of the Falls Church quadrangle, Fairfax and Arlington Counties and the City of Falls Church, Virginia, and Montgomery County, Maryland},
  author = {Avery Ala Drake and A.J. Froelich},
  year = {1997},
  doi = {10.3133/gq1734},
  url = {https://pubs.usgs.gov/publication/gq1734},
  note = {Source identifier: gq1734}
}