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Чикаго-гийн эшлэл (17 дахь хэвлэлт)Economic and Social Commission for Western Asia ба United Nations. Economic and Social Commission for Western Asia. Sustainable Water Supply and Sanitation for All: Regional Assessment Report on the Status and Achievements of ESCWA Countries Towards Improved Water Supply and Sanitation. New York: United Nations, 2009.
MLA -ийн эшлэл (9 дэх хэвлэлт)Economic and Social Commission for Western Asia ба United Nations. Economic and Social Commission for Western Asia. Sustainable Water Supply and Sanitation for All: Regional Assessment Report on the Status and Achievements of ESCWA Countries Towards Improved Water Supply and Sanitation. United Nations, 2009.