Não informado. (1939). Journal of the Institute of Petroleum. Institute of Petroleum.
Chicagoスタイル(17版)引用形式Não informado. Journal of the Institute of Petroleum. London: Institute of Petroleum, 1939.
MLA(8版)引用形式Não informado. Journal of the Institute of Petroleum. Institute of Petroleum, 1939.
警告: この引用は必ずしも正確ではありません.