Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C35801
Notes:
Pages 368-371 in L. John Martin and Ray Eldon Hiebert (eds.), Current issues in international communication. Longman, White Plains, New York. 390 pages.
Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 116 Document Number: C12678
Notes:
Pages 163-174 in William M. Rivera and Daniel J. Gustafson (eds.), Agricultural Extension: worldwide institutional evolution and forces for change. Elsevier Science Publishers, Amsterdam, The Netherlands. 312 p.