@misc{indiciae9e92d8663609,
  title = {Correlation between geophysical data and rock types in the Piedmont and coastal plain of northeast Virginia and related areas},
  author = {Louis Pavlides and K Sylvester and David L. Daniels and Robert G. Bates},
  year = {1974},
  url = {https://pubs.usgs.gov/publication/70232489},
  note = {Source identifier: 70232489}
}