@misc{indiciaec7ab98930fd8,
  title = {Ground-water vulnerability to nitrate contamination in the mid-atlantic region},
  author = {Earl A. Greene and Andrew E. LaMotte and Kerri-Ann Cullinan and Elizabeth R. Smith},
  year = {2005},
  doi = {10.3133/fs20043067},
  url = {https://pubs.usgs.gov/publication/fs20043067},
  note = {Source identifier: fs20043067}
}