1. Artsimovich, L. (1969). In a lecture at the Massachusetts Institute of Technology (March). Bennis, W. G., Benne, K. D., and Chin, R., eds. (1969).The Planning of Change, 2nd ed. New York: Holt, Rinehart and Winston.
2. Berger, P. and Luckmann, T. (1969).Die gesellschaftliche Konstruktion der Wirklichkeit: Eine Theorie der Wissenssoziologie Frankfurt: Fischer.
3. Brooks, H. (1968). “Can Science Be Planned?” inProblems of Science Policy. Paris: OECD.
4. Carey, W. D. (1969). “Toward the Proper Study of Man”,Technol. Rev. M.I.T. (March).
5. Churchman, C. W. (1968).Challenge to Reason. New York: McGraw-Hill.