TY - RPRT TI - Occurrence of isoxaflutole, acetamide, and triazine herbicides and their degradation products in 10 Iowa rivers draining to the Mississippi and Missouri Rivers, 2004 AU - Elisabeth A. Scribner AU - Michael T. Meyer AU - Stephen J. Kalkhoff PY - 2006 DO - 10.3133/sir20065169 UR - https://pubs.usgs.gov/publication/sir20065169 ID - sir20065169 ER -