@misc{indiciaeac1c7a45cda3,
  title = {Nitrate in ground water and stream base flow in the lower Susquehanna River Basin, Pennsylvania and Maryland},
  author = {Bruce D. Lindsey and Connie A. Loper and Robert A. Hainly},
  year = {1997},
  doi = {10.3133/wri974146},
  url = {https://pubs.usgs.gov/publication/wri974146},
  note = {Source identifier: wri974146}
}