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 Box: Byrnes2 Document Number: C12346
Notes:
Francis C. Byrnes Collection, Pages 565-569 in Borton, Raymond E. (ed.), Selected readings to accompany getting agriculture moving. Volume 2. Agricultural Development Council, New York, NY. 526 p.