United Nations. Economic Commission for Europe. (2004). Strategies and policies for air pollution abatement. United Nations.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited Nations. Economic Commission for Europe. Strategies and Policies for Air Pollution Abatement. New York: United Nations, 2004.
एमएलए (9वां संस्करण) प्रशस्ति पत्रUnited Nations. Economic Commission for Europe. Strategies and Policies for Air Pollution Abatement. United Nations, 2004.
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