APA(7版)引用形式

(1990). Natural gas: Its role and potential in economic development. Westview pr..

Chicagoスタイル(17版)引用形式

Natural Gas: Its Role and Potential in Economic Development. Boulder: Westview pr., 1990.

MLA(9版)引用形式

Natural Gas: Its Role and Potential in Economic Development. Westview pr., 1990.

警告: この引用は必ずしも正確ではありません.