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003 IN-NITTTR
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008 251113s9999||||xx |||||||||||||| ||eng||
040 _beng
040 _cIN-NITTTR
041 _aeng
082 _a621.3857 V82T
100 _aViswanathan, Thiagarajan
245 0 _aTelecommunication switching systems and networks /
_cViswanathan, Thiagarajan
942 _2ddc
_cBK
999 _c31590
_d31590