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.
Chicago Style (17. basım) AtıfUnited 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.
MLA (9th ed.) AtıfUnited Nations. Economic and Social Commission for Western Asia. Development of Guidelines for Harmonized Environmental Impact Assessment Suitable for the ESCWA Region. United Nations, 2001.