United Nations. Economic and Social Commission for Western Asia. (2001). Development of guidelines for harmonized environmental impact assessment suitable for the ESCWA region. United Nations.
Παραπομπή σε μορφή Chicago (17η εκδ.)United Nations. Economic and Social Commission for Western Asia. Development of Guidelines for Harmonized Environmental Impact Assessment Suitable for the ESCWA Region. New York: United Nations, 2001.
Παραπομπή σε μορφή MLA (9th εκδ.)United Nations. Economic and Social Commission for Western Asia. Development of Guidelines for Harmonized Environmental Impact Assessment Suitable for the ESCWA Region. United Nations, 2001.
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