TY - RPRT TI - Compilation of atrazine and selected herbicide data from previous surface-water-quality investigations within the Big Blue River basin, Nebraska, 1983-92 AU - J.D. Frankforter PY - 1994 DO - 10.3133/ofr94100 UR - https://pubs.usgs.gov/publication/ofr94100 ID - ofr94100 ER -