@misc{indiciaeececabf6c082,
  title = {Conodont color alteration index (CAI) map and conodont-based age determinations for the Winchester 30' x 60' Quadrangle and adjacent area, Virginia, West Virginia, and Maryland},
  author = {Anita G. Harris and Nancy R. Stamm and David J. Weary and John E. Repetski and Robert G. Stamm and Ronald A. Parker},
  year = {1994},
  doi = {10.3133/mf2239},
  url = {https://pubs.usgs.gov/publication/mf2239},
  note = {Source identifier: mf2239}
}