000 00264nam a22001097a 4500
082 _a600
100 _aMishra, Anita
_979821
245 _aThe New Era of Telecommunication
260 _aDelhi
_bSharma & Bros. Pub
_c2018
650 _aTechnology
_979822
942 _cBK
999 _c63399
_d63399