000 00509nam a2200193Ia 4500
008 220902s9999 xx 000 0 und d
041 _a  ENGLISH
082 _a621.382.382
082 _bDAS
100 _aDAS, APURBA
245 0 _aLINE COMMUNICATION SYSTEM : TELECOMMUNICATION SWITCHING APPROACH.
250 _a2nd ed.
250 _b2010
260 _aNEW DELHI
260 _bNEW AGE INTERNATIONL PUBLISHERS
300 _a266
650 _a  LINE COMMUNICATION SYSTEM
942 _cREF
999 _c150430
_d150430