@misc{indiciaec844b39ac5a2,
  title = {Data relating to distribution and age of Miocene and younger strata in the Stafford area, Virginia},
  author = {Robert B. Mixon},
  year = {1976},
  doi = {10.3133/ofr76588},
  url = {https://pubs.usgs.gov/publication/ofr76588},
  note = {Source identifier: ofr76588}
}