Vereinte Nationen Department of Economic and Social Affairs. (1972). A policy approach to planning in social defense. United Nations.
Chicago-Zitierstil (17. Ausg.)Vereinte Nationen Department of Economic and Social Affairs. A Policy Approach to Planning in Social Defense. New York: United Nations, 1972.
MLA-Zitierstil (9. Ausg.)Vereinte Nationen Department of Economic and Social Affairs. A Policy Approach to Planning in Social Defense. United Nations, 1972.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.