@misc{indiciaee21e12114a95,
  title = {Map showing heavy minerals in Pleistocene(?) shoreline sand bodies of southeastern Virginia},
  author = {E. R. Force and P. J. Geraci},
  year = {1975},
  doi = {10.3133/mf718},
  url = {https://pubs.usgs.gov/publication/mf718},
  note = {Source identifier: mf718}
}