References
- Machlup , Fritz . 1962 . The Production and Distribution of Knowledge in the United States , Princeton : Princeton University Press .
- U.S. Department of Labor . March 1965 . Manpower Report of the President and a Report on Manpower Requirements, Resources, Utilization, and Training , March , Washington, D.C. : U.S. Government Printing Office .
- Ginsberg , Eli , Hiestand , Dale L. and Reubens , Beatrice G. 1965 . The Pluralistic Economy , New York : McGraw‐Hill Book Company, Inc. .