1. See Brewer Stanley H., Rhochrematics (Seattle: Bureau of Business Research, University of Washington, June 1960), 30 pp.
2. Pfiffner John M., Sherwood Frank P., Administrative Organization (Englewood Cliffs: Prentice-Hall, Inc., 1960), pp. 14–15.
3. Forrester Jay, “Management and Management Science,” Unpublished Paper, copyrighted by Dr. Forrester, School of Industrial Management, Massachusetts Institute of Technology, p. 7.