00261nam a2200109Ia 4500008004100000041001200041082001100053100001600064245005900080260000600139650000600145221030s9999    xx            000 0 und d  aEnglish  a105.23  aK. B. Raina 0aElectrical Design Estimating & Costingcby K. B. Raina  c0  aB