TY  - RPRT
TI  - Trends in nutrient concentration and load for streams in the Mississippi River Basin, 1974-94
AU  - Dee L. Lurry
AU  - David E. Dunn
PY  - 1997
DO  - 10.3133/wri974223
UR  - https://pubs.usgs.gov/publication/wri974223
ID  - wri974223
ER  -