(1963). New directions in health, education and welfare: Background papers on current and emerging issues. Washington, D.C: Government Printing Office.
Παραπομπή Chicago StyleNew Directions in Health, Education and Welfare: Background Papers On Current and Emerging Issues. Washington, D.C: Government Printing Office, 1963.
Παραπομπή MLANew Directions in Health, Education and Welfare: Background Papers On Current and Emerging Issues. Washington, D.C: Government Printing Office, 1963.
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