000 00307nam a2200121Ia 4500
008 230222s9999 xx 000 0 und d
082 _a384.6
100 _aDas P N
245 3 _aAn Introduction to Automatic Telephony 3rd Edition
250 _a3
260 _bModern Book Agency Calicut
_c1993
942 _cBK
999 _c34874
_d34874