000 00320nam a2200109Ia 4500
008 220201s1965 xx 000 0 eng d
100 _aIndian Standard Institution Manak Bhawan
245 0 _aIS:2032(Pv)-1965 Graphical symbols used in electro technology
260 _bISI Manak bhawan
_c1965
300 _a6
942 _2ddc
999 _c75994
_d75994