TY  - RPRT
TI  - Herbicides and transformation products in surface waters of the Midwestern United States
AU  - W.A. Battaglin
AU  - E.M. Thurman
AU  - S. J. Kalkhoff
AU  - S. D. Porter
PY  - 2007
DO  - 10.1111/j.1752-1688.2003.tb04402.x
UR  - https://pubs.usgs.gov/publication/70025867
ID  - 70025867
ER  -