APA (7e ed.) Bronvermelding

Economic Commission for Europe- UN. (1992). East -West Energy Efficiency: The Ace Energy Series. United Nations.

Chicago (17e ed.) Bronvermelding

Economic Commission for Europe- UN. East -West Energy Efficiency: The Ace Energy Series. New York: United Nations, 1992.

MLA (9e ed.) Bronvermelding

Economic Commission for Europe- UN. East -West Energy Efficiency: The Ace Energy Series. United Nations, 1992.

Let op: Deze citaties zijn niet altijd 100% accuraat.