@misc{indiciae26ddd036ea3d,
  title = {Application of geologic map information to water quality issues in the southern part of the Chesapeake Bay watershed, Maryland and Virginia, eastern United States},
  author = {L. McCartan and J. D. Peper and L. J. Bachman and J. Wright Horton},
  year = {1999},
  doi = {10.1016/s0375-6742(98)00043-0},
  url = {https://pubs.usgs.gov/publication/70021969},
  note = {Source identifier: 70021969}
}