@misc{indiciaecd84b03ef351,
  title = {Evaluation of nitrate sources using nitrogen-isotope techniques in shallow ground water within selected lake basins in the Central Lakes District, Polk and Highlands Counties, Florida},
  author = {A. B. Tihansky and L. A. Sacks},
  year = {1997},
  doi = {10.3133/wri974207},
  url = {https://pubs.usgs.gov/publication/wri974207},
  note = {Source identifier: wri974207}
}