1. Market returns, infrastructure and the supply and demand for extension services Collection: Agricultural Communications Documentation Center (ACDC) Contributers: Langworthy, Mark (author), Friswold, George B. (author), and Fernicola, Kathleen (author) Format: Journal article Publication Date: 2001-08 Published: USA Location: Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C19660 Journal Title: American Journal of Agricultural Economics Journal Title Details: 83(3) : 758-763