1. Robertson, Nat C. (1980).Science Policy: USA/ USSR, Vol. 1, Washington, DC: US Government Printing Office, p. 84.
2. Watkins, Charles B. (Fall 1985).Technology Transfer from University Research in Regional Development Strategies. Journal of Technology Transfer, p. 60.
3. Cochrane, Willard W. (1979).The Development of American Agriculture, Minneapolis: University of Minnesota Press, p. 169.
4. Feller, Irwin, et al (1984).The Agricultural Technology Delivery System: A Study of the Transfer of Agricultural and Food-Related Technologies. University Park, PA: Institute for Policy Research and Evaluation, Pennsylvania State University, p. 70.
5. Ibid.,, p. 91.