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: 12 Document Number: B01616
Notes:
James F. Evans Collection. Review of Extension Research 1946/47-1956, Extension Service Circular 506, U.S. Department of Agriculture, Washington, D.C., Lexington, KY : University of Kentucky, Kentucky Agricultural Experiment Station, 1952. 17 p.