1. Big river : a King corn companion Publication/Creation: [Oley, Pennsylvania] : [Distributed by] Bullfrog Films, [2010] Resource Type: Video or Visual Material Access & Availability: Loading
2. Big river : a King corn companion Publication/Creation: Oley, Penn. : Bullfrog Films, [2009] Resource Type: Video or Visual Material Access & Availability: Loading
3. Occurrence of isoxaflutole, acetamide, and triazine herbicides and their degradation products in 10 Iowa rivers draining to the Mississippi and Missouri Rivers, 2004 Author/Creator: Scribner, Elisabeth A. Publication/Creation: Reston, Va. : U.S. Geological Survey, 2006 Resource Type: Book Access & Availability: Loading
4. Occurrence and distribution of nitrate and herbicides in the Iowa River alluvial aquifer, Iowa--May 1984 to November 1985 Author/Creator: Detroy, Mark G., author Publication/Creation: Iowa City, Iowa : U.S. Geological Survey, 1988 Resource Type: Book Access & Availability: Loading