TY - RPRT TI - Use of chemical and isotopic tracers to assess nitrate contamination and ground-water age, Woodville Karst Plain, USA AU - B. G. Katz AU - A.R. Chelette AU - T.R. Pratt PY - 2004 DO - 10.1016/j.jhydrol.2003.11.001 UR - https://pubs.usgs.gov/publication/70027242 ID - 70027242 ER -