00330nam a2200121Ia 4500008004100000020001900041082001900060100001400079245004100093260004100134300001700175650001600192240817s9999    xx            000 0 und d  a 81-7808-655-7  a621.384 G181,p  aGarg ,V.K 0aPrinciples & Applications of GSM  c1999a New Delhib Pearson Education  axxiii,481 p.  a Electrical