@misc{indiciae7dfd8ac95ab3,
  title = {Water quality of springs in the Valley and Ridge Physiographic Province in the upper Tennessee River basin, 1997},
  author = {Gregory C. Johnson},
  year = {2002},
  doi = {10.3133/wri024180},
  url = {https://pubs.usgs.gov/publication/wri024180},
  note = {Source identifier: wri024180}
}