000 00330nam a2200133Ia 4500
008 170101s1999 xx 000 0 und d
100 _aGupta Sanjeeva
245 0 _aElectronics Communications
260 _aDelhi
_bKhanna Publications
_c1999
300 _a792
650 _aCommunicat
650 _aElectronics
942 _2ddc
_cBK
999 _c99693
_d99693