00269nam a2200109Ia 4500008004100000041000800041082002200049100001300071245003600084260003100120300000800151211209s1976    xx            000 0 und d  aeng  a621.31042 N76 SNO  aSNOW C W  aELECTRICAL DRAFTING AND DESIGN   aINDIAbPRENTICE HALLc1976  a396