Economic Commission for Europe- UN. (1992). East -West Energy Efficiency: The Ace Energy Series. United Nations.
Cytowanie według stylu Chicago (wyd. 17)Economic Commission for Europe- UN. East -West Energy Efficiency: The Ace Energy Series. New York: United Nations, 1992.
Cytowanie według stylu MLA (wyd. 9)Economic Commission for Europe- UN. East -West Energy Efficiency: The Ace Energy Series. United Nations, 1992.