TY - RPRT TI - National Water Quality Assessment Program; preliminary assessment of nitrate distribution in ground water in the Georgia-Florida Coastal Plain study unit, 1972-90 AU - M. P. Berndt PY - 1993 DO - 10.3133/ofr93478 UR - https://pubs.usgs.gov/publication/ofr93478 ID - ofr93478 ER -