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020 _a0-471-57176
040 _aLIS CUI Lahore
_cAACR-II/RDA
082 _24th
_a621.3815 NII-C
100 _aNiit
245 0 _aCommunication systems
250 _a4th
260 _bPearson Education Publisher
264 _c0
300 _aSoft Binding
_bxvi 458
365 _b0
_cRs.
546 _aEnglish
650 _xCommunication, systems
852 _pLHR 6167
942 _2lhr
_cLHR 6167
_h1
999 _c464055
_d464055