000 00309nam a2200133Ia 4500
100 _aGUPTA SANJEEVA
650 _aCommunication Systems
365 _cRS
365 _d1
942 _cENGBK
245 _aElectronics Communications Systems
260 _bKhanna Publishers
_c1980
_aNew Delhi
300 _aXII+796PP
999 _c5813
_d5813