TY  - RPRT
TI  - Nutrients in Shallow Ground Waters Beneath Relatively Undeveloped Areas in the Conterminous United States
AU  - Bernard T. Nolan
AU  - Kerie J. Hitt
PY  - 2003
DO  - 10.3133/wri20024289
UR  - https://pubs.usgs.gov/publication/wri20024289
ID  - wri20024289
ER  -