"cotton, h . "
elecrical technology: / h.. cotton - 7 ed. - new delhi : cbs 1984. - "xv, 864p.; 22 cm."
81-239-0928-4
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621. 3 cot
elecrical technology: / h.. cotton - 7 ed. - new delhi : cbs 1984. - "xv, 864p.; 22 cm."
81-239-0928-4
--
621. 3 cot