TY  - RPRT
TI  - Occurrence of herbicides, nitrite plus nitrate, and selected trace elements in ground water from northwestern and northeastern Missouri, July 1991 and 1992
AU  - Donald H. Wilkison
AU  - Randall D. Maley
PY  - 1994
DO  - 10.3133/ofr94332
UR  - https://pubs.usgs.gov/publication/ofr94332
ID  - ofr94332
ER  -