000 00429nam a2200109Ia 4500
100 _aIndian Standards Institution
942 _cBK
245 _aIndian standard graphical symbols used in electrotechnology part XI electrical installations in buildings
_belectrotechnical standards sectional committee, ETDC 1
260 _aIndian Standards Institution, New Delhi
_c1970
082 _aIS:2032(pt.XI)-1969 621.316 I.S.I.
300 _a12
999 _c20139
_d20139