000 00332nam a2200121Ia 4500
008 220120s9999||||xx |||||||||||||| ||und||
020 _a81-7808-131-8
100 _aChandrashekar, K
245 0 _aTelecommunication switching
260 _aTechnical publications
_bDelhi
_c2004
300 _b295
650 _aDATA FILES & DATABASE
_9695
999 _c137215
_d137215