Hubert, C. I. (1961). Operational electricity: Theory, characteristics, applications, and mode of operation of circuits and machines. New York: Wiley.
Παραπομπή Chicago StyleHubert, Charles I. Operational Electricity: Theory, Characteristics, Applications, and Mode of Operation of Circuits and Machines. New York: Wiley, 1961.
Παραπομπή MLAHubert, Charles I. Operational Electricity: Theory, Characteristics, Applications, and Mode of Operation of Circuits and Machines. New York: Wiley, 1961.
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