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.
Citação do estilo Chicago (17ª ed.)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.
Citação MLA (9ª ed.)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.