000 00334nam a2200121Ia 4500
008 220217s9999||||xx |||||||||||||| ||und||
082 _a621.382 KEN
100 _aKennedy, Davis
_91926
245 0 _aElectronic communications system
260 _aTata cgraw hill
_bNew Delhi
_c1999
300 _b0
650 _aCOMMUNICATION SYSTEM
999 _c167811
_d167811