000 00331nam a2200133Ia 4500
008 200615s9999||||xx |||||||||||||| ||und||
020 _a9780071077828
082 _a537.5
_bELE-G
100 _aGEORGE KENNEDY
245 0 _aELECTRONIC COMMUNICATION SYSTEM
250 _a5TH
260 _anew delhi
_bMC GRAW HILL
_c2017
942 _cBK
999 _c28705
_d28705