00290nam a2200121Ia 4500008004100000041001200041082002300053100001800076245002300094260003200117300000800149650001100157231217s9999    xx            000 0 und d  aEnglish  a621.042  NAG;2  R1  aNagaraj, P B. 0aEnergy engineering  c2008bSudha Pub.aBangalore  a273  aEnergy