(1964). Electrical transmission and distribution reference book. East Pittsburgh: Westinghouse Electric Corp.
Dyfyniad Arddull ChicagoElectrical Transmission and Distribution Reference Book. East Pittsburgh: Westinghouse Electric Corp, 1964.
Dyfyniad MLAElectrical Transmission and Distribution Reference Book. East Pittsburgh: Westinghouse Electric Corp, 1964.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.