Citação norma APA

Long, D. (1991). European gas oil markets: Price relationships, hedging and efficiency. Oxford Institute for Energy Studies.

Citação norma Chicago

Long, D. European Gas Oil Markets: Price Relationships, Hedging and Efficiency. Oxford Institute for Energy Studies, 1991.

Citação norma MLA

Long, D. European Gas Oil Markets: Price Relationships, Hedging and Efficiency. Oxford Institute for Energy Studies, 1991.

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