IS:1885(Pxxiii)-1967 Electrotechnical vocabulary
Indian Standard Institution Manak Bhawan
IS:1885(Pxxiii)-1967 Electrotechnical vocabulary - ISI Manak bhawan 1967 - 7
IS:1885(Pxxiii)-1967 Electrotechnical vocabulary - ISI Manak bhawan 1967 - 7