TY  - RPRT
TI  - Hydrologic and land-use factors associated with herbicides and nitrate in near-surface aquifers
AU  - Michael R. Burkart
AU  - Dana W. Kolpin
PY  - 1993
DO  - 10.2134/jeq1993.00472425002200040002x
UR  - https://pubs.usgs.gov/publication/70169050
ID  - 70169050
ER  -