@misc{indiciae6a4cd78e49d7, title = {Sources of nitrate in water from springs and the Upper Floridan aquifer, Suwannee River basin, Florida}, author = {B. G. Katz and H.D. Hornsby and J.K. Bohlke}, year = {1999}, url = {https://pubs.usgs.gov/publication/70021045}, note = {Source identifier: 70021045} }