Interregional Seminar on Development Planning (1st : Ankara : 1965) & United Nations. (1967). Planning the external sector: Techniques, problems and policies. United Nations.
Citazione stile Chigago Style (17a edizione)Interregional Seminar on Development Planning (1st : Ankara : 1965) e United Nations. Planning the External Sector: Techniques, Problems and Policies. New York: United Nations, 1967.
Citatione MLA (9a ed.)Interregional Seminar on Development Planning (1st : Ankara : 1965) e United Nations. Planning the External Sector: Techniques, Problems and Policies. United Nations, 1967.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.