Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C18410
Notes:
Pages 87-107 in Bruce R. Crouch and Shankariah Chamala (eds.), Extension education and rural development. Volume 2. John Wiley and Sons, Chichester. 325 pages.
Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C35842
Notes:
Pages 283-285 in Ronald E. Rice and Charles K. Atkin (eds.), Public communication campaigns, Third Edition, Sage Publications, Thousand Oaks, California. 428 pages.