TY - RPRT TI - Toward implementation of a national ground water monitoring network AU - Robert P. Schreiber AU - William L. Cunningham AU - Rick Copeland AU - Kevin D. Frederick PY - 2008 DO - 10.2175/193864708788752016 UR - https://pubs.usgs.gov/publication/70157181 ID - 70157181 ER -