000 00325nam a2200133Ia 4500
100 _aShukla, Rajiv
020 _a81-87317-83-3
654 _aCOMMUNICATION
942 _cBK
245 _aCommunication technologies
_bChanges and challenges
260 _aRajat Publ, New Delhi
_cc2000
082 _a384 Shu
300 _avii,303p
999 _c23390
_d23390