Não informado. (2019). Global Energy Business. McGraw-Hill Companies.
Chicagoスタイル(17版)引用形式Não informado. Global Energy Business. New York: McGraw-Hill Companies, 2019.
MLA(8版)引用形式Não informado. Global Energy Business. McGraw-Hill Companies, 2019.
警告: この引用は必ずしも正確ではありません.