TY - RPRT TI - Concentration of selected herbicides, herbicide degradation products, and nutrients in the lower Mississippi River, Louisiana, April 1991 through December 2003 AU - Elisabeth A. Scribner AU - Donald A. Goolsby AU - William A. Battaglin AU - Michael T. Meyer AU - E.M. Thurman PY - 2006 DO - 10.3133/ds165 UR - https://pubs.usgs.gov/publication/ds165 ID - ds165 ER -