@misc{indiciae025273f7a282,
  title = {Geologic map of the Quantico quadrangle, Prince William and Stafford Counties, Virginia, and Charles County, Maryland},
  author = {Robert B. Mixon and D. L. Southwick and John Calvin Reed},
  year = {1972},
  doi = {10.3133/gq1044},
  url = {https://pubs.usgs.gov/publication/gq1044},
  note = {Source identifier: gq1044}
}