TY  - BOOK
AU  - Kolpin, Dana W.
AU  - Burkart, M. R.
AU  - Thurman, E. M.
CN  - TC801
CN  - TD427.H46
CN  - TC801
CY  - Washington :
CY  - Denver, CO :
DA  - 1994.
ID  - 158563
KW  - Herbicides
KW  - Nitrates
KW  - Groundwater
PB  - U.S. G.P.O. ;
PB  - for sale by USGS Map Distribution,
PP  - Washington :
PP  - Denver, CO :
PY  - 1994.
T1  - Herbicides and nitrate in near-surface aquifers in the midcontinental United States, 1991 /
TI  - Herbicides and nitrate in near-surface aquifers in the midcontinental United States, 1991 /
VL  - 2413
ER  -