1. On-farm demonstrations: consideration factors for their success and viability as an extension teaching tool Collection: Agricultural Communications Documentation Center (ACDC) Contributers: Richardson, J.G. (author) Format: Abstract Publication Date: 2003 Published: International Location: Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 174 Document Number: C29680 Journal Title: South African Journal of Agricultural Extension Journal Title Details: 32 Notes: Via African Journals Online.