000 00447nam a2200181Ia 4500
005 20210427212216.0
008 140515s9999||||xx |||||||||||||| ||und||
020 _a9788126509294
040 _aUPES LIBRARY
_bEnglish
082 _a621.385
_bBEL
100 _aBellamy, John C.
_9683
245 _aDigital telephony
250 _a3rd ed.
260 _aNew Delhi:
_bWiley India,
_c2011
300 _axxv, 643p.
650 _aElectronics
942 _cBK
999 _c857
_d857