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Чикаго-гийн эшлэл (17 дахь хэвлэлт)Economic Commission for Europe- UN. East -West Energy Efficiency: The Ace Energy Series. New York: United Nations, 1992.
MLA -ийн эшлэл (9 дэх хэвлэлт)Economic Commission for Europe- UN. East -West Energy Efficiency: The Ace Energy Series. United Nations, 1992.