00299nam a2200109Ia 4500008004100000041000800041082002300049100001200072245004700084260005000131300000800181211209s1975    xx            000 0 und d  aeng  a621.31 N75 BUD/SCH  aBUDAN P  aUNDERSTANDING ELECTRICITY AND ELECTRONICS   aNEW DELHIbTMH PUBLICATION COMPANY LTD.c1975  a480