000 00266nam a2200097Ia 4500
008 150310s9999 xx 000 0 und d
100 _aDAS P N
245 _aAN INTRODUCTION TO AUTOMATIC TELEPHONEY
250 _a4
260 _c1975
_b"MODERM BOOK AGENCY PVT.LTD, CALCUTTA"
999 _c7334
_d7334