1. The intellectual foundation and history of the agricultural extension model Collection: Agricultural Communications Documentation Center (ACDC) Contributers: Rogers, Everett M. (author) Format: Journal article Publication Date: 1988-06 Published: USA Location: Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C18324 Journal Title: Knowledge: Creation, Diffusion, Utilization Journal Title Details: 9(4) : 492-510