Não informado. (1957). Industrial power systems. General Electric Company.
Chicagoスタイル(17版)引用形式Não informado. Industrial Power Systems. Schenectady, NY: General Electric Company, 1957.
MLA(8版)引用形式Não informado. Industrial Power Systems. General Electric Company, 1957.
警告: この引用は必ずしも正確ではありません.