(1965). Service directory of national organizations: 1965 (8th ed.). New York: National Social Welfare Assembly.
Παραπομπή Chicago StyleService Directory of National Organizations: 1965. 8th ed. New York: National Social Welfare Assembly, 1965.
Παραπομπή MLAService Directory of National Organizations: 1965. 8th ed. New York: National Social Welfare Assembly, 1965.
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