TY  - RPRT
TI  - Willamette Basin, Oregon; nitrogen in streams and ground water, 1980-90
AU  - Bernadine Bonn
AU  - D.A. Wentz
AU  - S.R. Hinkle
PY  - 1996
DO  - 10.3133/ofr96227
UR  - https://pubs.usgs.gov/publication/ofr96227
ID  - ofr96227
ER  -