00290nam a2200121Ia 4500008004100000041001200041082001600053100001300069245003600082260003300118300001000151650000700161221030s9999    xx            000 0 und d  aEnglish  a105.23bSin  aS. Singh 0aElectrical Estimating & Costing  bDhanpat Rai PubaDelhic2001  a24.24  aEE