Page 84 in Extension Circular 532, Review of Extension Research, January through December 1959, U.S. Department of Agriculture, Washington, D.C. Citation of a revised edition involving 135 titles supplementing those in "How farm people accept new ideas," North Central Regional Publication No. 1. 2nd edition. Iowa State College, Ames. 1959. 12 pages.
Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 10 Document Number: B01386
Notes:
AgComm Teaching, East Lansing, Michigan: Dept of Communication, College of Communication Arts, Michigan State University. 101pp (Diffusion of Innovations Research Report No. 3)
Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 10 Document Number: B01385
Notes:
AgComm Teaching, East Lansing, Michigan: Dept of Communication, College of Communication Arts Michigan State University. 36pp (Diffusion of Innovations Research Report No. 6a)