TY - RPRT TI - Combined use of groundwater dating, chemical, and isotopic analyses to resolve the history and fate of nitrate contamination in two agricultural watersheds, Atlantic coastal plain, Maryland AU - J.K. Böhlke AU - J. M. Denver PY - 2010 DO - 10.1029/95wr01584 UR - https://pubs.usgs.gov/publication/70185321 ID - 70185321 ER -