000 00247nam a2200097Ia 4500
008 230508s2004 xx 000 0 und d
041 _aeng
100 _aCHITODE J.S.
245 _aELECTRONIC COMMUNICATION - I
260 _bTATA MC GRAW HILL PU
_c2004
999 _c730533
_d730533