00329nam a2200121Ia 4500008004100000041001200041082001600053100001600069245006500085260004200150300000800192650000700200221030s9999    xx            000 0 und d  aEnglish  a105.23bGup  aJ. B. Gupta 0aElectrical Installation Estimating & Costingcby J. B. Gupta  bS.K. Kataria  & SonsaNew Delhic2000  a272  aEE