Não informado. (1950). Power Engineering. Pennwell Publishing.
Chicagoスタイル(17版)引用形式Não informado. Power Engineering. Barrington, Ill: Pennwell Publishing, 1950.
MLA(8版)引用形式Não informado. Power Engineering. Pennwell Publishing, 1950.
警告: この引用は必ずしも正確ではありません.