TY  - RPRT
TI  - Geographic and seasonal distribution of herbicides in streams of the midwestern United States
AU  - D. A. Goolsby
AU  - E.M. Thurman
AU  - D.W. Kolpin
PY  - 1991
UR  - https://pubs.usgs.gov/publication/70169935
ID  - 70169935
ER  -