Interregional Seminar on Development Planning (1st : Ankara : 1965) & United Nations. (1967). Planning the external sector: Techniques, problems and policies. United Nations.
Chicago-viite (17. p.)Interregional Seminar on Development Planning (1st : Ankara : 1965) ja United Nations. Planning the External Sector: Techniques, Problems and Policies. New York: United Nations, 1967.
MLA-viite (9. p.)Interregional Seminar on Development Planning (1st : Ankara : 1965) ja United Nations. Planning the External Sector: Techniques, Problems and Policies. United Nations, 1967.
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