00282nam a2200121Ia 4500008004100000020001800041082001000059100001500069245004200084250000600126260002000132300000800152240801s9999    xx            000 0 und d  a9789350144374  bGUP-A  aGUPTA J.B. 2aA TEXTBOOK OF ELECTRONICS ENGINEERING  a1  aNEW DELHIc2004  a472