Citação norma APA

United Nations. Department of Economic and Social Information and Policy Analysis Statistical Division. (2001). Energy statistics yearbook =: Annuaire des statistiques de l'énergie. United Nations.

Citação norma Chicago

United Nations. Department of Economic and Social Information and Policy Analysis Statistical Division. Energy Statistics Yearbook =: Annuaire Des Statistiques De L'énergie. New York: United Nations, 2001.

Citação norma MLA

United Nations. Department of Economic and Social Information and Policy Analysis Statistical Division. Energy Statistics Yearbook =: Annuaire Des Statistiques De L'énergie. United Nations, 2001.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.