@misc{indiciaef2d0bfb8de23,
  title = {Middle and upper Paleozoic granitic rocks in the Piedmont near Fredericksburg, Virginia; geochronology},
  author = {Louis Pavlides and T. W. Stern and Joseph G. Arth and K. G. Muth and M. F. Newell},
  year = {1982},
  doi = {10.3133/pp1231b},
  url = {https://pubs.usgs.gov/publication/pp1231B},
  note = {Source identifier: pp1231B}
}