(1959). The development of national social service programmes: Report by the group of experts appointed by the Secretary-General of the United Nations. United Nations.
Παραπομπή σε μορφή Chicago (17η εκδ.)The Development of National Social Service Programmes: Report by the Group of Experts Appointed by the Secretary-General of the United Nations. New York: United Nations, 1959.
Παραπομπή σε μορφή MLA (8th εκδ.)The Development of National Social Service Programmes: Report by the Group of Experts Appointed by the Secretary-General of the United Nations. United Nations, 1959.
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