Não informado. (1949). Petroleum Engineer International. Harcourt Brace Jovanovich Publications.
Chicagoスタイル(17版)引用形式Não informado. Petroleum Engineer International. Dallas, Tex: Harcourt Brace Jovanovich Publications, 1949.
MLA(8版)引用形式Não informado. Petroleum Engineer International. Harcourt Brace Jovanovich Publications, 1949.
警告: この引用は必ずしも正確ではありません.