United Nations Industrial Development Organization. (1978). Manual for the preparation of industrial feasibility studies. United Nations.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)United Nations Industrial Development Organization. Manual for the Preparation of Industrial Feasibility Studies. New York: United Nations, 1978.
MLA -ийн эшлэл (9 дэх хэвлэлт)United Nations Industrial Development Organization. Manual for the Preparation of Industrial Feasibility Studies. United Nations, 1978.
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