Não informado. (2001). Oil Market Report. International Energy Agency.
Chicagoスタイル(17版)引用形式Não informado. Oil Market Report. London: International Energy Agency, 2001.
MLA(8版)引用形式Não informado. Oil Market Report. International Energy Agency, 2001.
警告: この引用は必ずしも正確ではありません.