Elgerd, O. I. (1971). Electric energy systems theory: :an introduction. Tata Mc Graw - Hill.
Chicago Style aipamenaElgerd, Olle I. Electric Energy Systems Theory: :an Introduction. New Delhi: Tata Mc Graw - Hill, 1971.
MLA aipamenaElgerd, Olle I. Electric Energy Systems Theory: :an Introduction. Tata Mc Graw - Hill, 1971.
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