000 00289nam a2200121Ia 4500
008 220201s1969 xx 000 0 eng d
082 _a621.3004
100 _aBansal,SP
245 0 _aElectrical estimating & costing
260 _bLudhiana:Katson pub.
_c1969
300 _a66
942 _2ddc
999 _c73948
_d73948