000 00294nam a2200121Ia 4500
008 170101s1996 xx 000 0 und d
100 _aDass P N
245 0 _aManual Telephony, An introduction to
260 _aCalcutta
_bMBA
_c1996
300 _a154
650 _aElectronics
942 _2ddc
_cBK
999 _c38993
_d38993