TY - RPRT TI - Distribution of agrochemicals in the lower Mississippi River and its tributaries AU - W. E. Pereira AU - C.E. Rostad AU - T.J. Leiker PY - 1990 DO - 10.1016/0048-9697(90)90229-n UR - https://pubs.usgs.gov/publication/70015942 ID - 70015942 ER -