Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C20704
Notes:
132 pages, Includes an historical overview of diffusion research from the 1940s to the 1970s, plus a discussion of recent trends and prospects for the future.
Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C21674
Notes:
Pages 35-46 in K. Sadanandan Nair and Shirley A. White (eds.), Perspectives on development communication. Sage Publications, Inc., Thousand Oaks, California. 256 pages.