000 00271nam a2200109Ia 4500
999 _c3397
_d3397
008 190326s9999 xx 000 0 und d
082 _a378.242 P984D
100 _aPunagin, R.P
_9137
245 0 _aDigital Switching System
260 _aSurathkal
_bK.R.E.C
_c1980
942 _cTH