TY - RPRT TI - Monthly variability and possible sources of nitrate in ground water beneath mixed agricultural land use, Suwannee and Lafayette Counties, Florida AU - Brian G. Katz AU - J.K. Böhlke PY - 2000 DO - 10.3133/wri004219 UR - https://pubs.usgs.gov/publication/wri004219 ID - wri004219 ER -