Interregional Seminar on Development Planning (1st : Ankara : 1965) & United Nations. (1967). Planning the external sector: Techniques, problems and policies. United Nations.
Citação do estilo Chicago (17ª ed.)Interregional Seminar on Development Planning (1st : Ankara : 1965) e United Nations. Planning the External Sector: Techniques, Problems and Policies. New York: United Nations, 1967.
Citação 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.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.