TY  - RPRT
TI  - Trends in concentrations and use of agricultural herbicides for Corn Belt rivers, 1996-2006
AU  - Aldo V. Vecchia
AU  - Robert J. Gilliom
AU  - Daniel J. Sullivan
AU  - David L. Lorenz
AU  - Jeffrey D. Martin
PY  - 2009
DO  - 10.1021/es902122j
UR  - https://pubs.usgs.gov/publication/70033809
ID  - 70033809
ER  -