TY - RPRT TI - Estimating contributions of nitrate and herbicides from groundwater to headwater streams, northern Atlantic Coastal Plain, USA AU - Scott Ator AU - Judith M. Denver PY - 2012 DO - 10.1111/j.1752-1688.2012.00672.x UR - https://pubs.usgs.gov/publication/70169103 ID - 70169103 ER -