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2. 2. Cilia J. Reesman and David R. Zimmerman, Worker Relocation, 1965-1972, A Report to the US Department of Labor Manpower Administration, February 1975, p. 129.
3. Industry Variations in Geographic Labor Mobility Patterns;Gallaway;Journal of Human Resources,1967
4. 4. Reesman and Zimmerman, op. cit., p. 135.
5. 5. P. B. Beaumont , ‘Employment Transfers: An Intra-Regional Problem’, The Planner, December 1975;