00309nam a2200121Ia 4500008004100000020001500041041000800056082002000064100001500084245003700099260004300136300000800179211209s2006    xx            000 0 und d  a085226190X  aeng  a621.317 N93 DUB  aDUBEY, G K  aTHYRISTORISED POWER CONTROLLERS   aNEW DELHIbNEW AGE INTERNATIONALc2006  a825