@misc{indiciae1ee5d84e20d5,
  title = {Piedmont geology of the Ladysmith and Lake Anna East quadrangles, and vicinity, Virginia},
  author = {A.R. Bobyarchick and Louis Pavlides and Karen Wier},
  year = {1981},
  doi = {10.3133/i1282},
  url = {https://pubs.usgs.gov/publication/i1282},
  note = {Source identifier: i1282}
}