000 00259nam a2200109Ia 4500
100 _aGupta J B
245 _aElectrical Installation Estimating and Costing
250 _a7
260 _c1991
_bS.K. KATARIA & SONS
_aDelhi
300 _aviii+308+56
942 _cBK
999 _c19984
_d19984