1. Upland farmers' comprehension of pictorial messages on environmental protection Collection: Agricultural Communications Documentation Center (ACDC) Contributers: Gravoso, R. (author) and Stuart, T. (author) Format: Journal article Publication Date: 2000 Published: International Location: Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C15877 Journal Title: Journal of Applied Communications Journal Title Details: 84 (3) : 30-43