000 00312nam a2200121Ia 4500
008 250409s9999 xx 000 0 und d
020 _a81-265-0336-x
082 _a4.6
_bHAR
100 _aHarak,Ray
245 0 _aCommunications systems and networks 3/E
260 _aNew Delhi
_bDreamtech,
_c2002
365 _a399
999 _c250397
_d250397