TY - RPRT TI - Occurrence of pesticides, nitrate, volatile organic compounds, trace elements in ground water and streams, southeastern Missouri, 1986-87 AU - Thomas O. Mesko AU - Gale M. Carlson PY - 1988 DO - 10.3133/ofr88495 UR - https://pubs.usgs.gov/publication/ofr88495 ID - ofr88495 ER -