000 00292nam a2200133Ia 4500
100 _aGUPTA SANJEEVA
650 _aCommunications
365 _cRS
365 _d1
942 _cENGBK
245 _aElectronics Communications
260 _bKhanna Publishers
_c1989
_aDelhi
300 _aXII+796PP
999 _c33105
_d33105