000			00394nam a2200145Ia 4500
008			220217s9999||||xx |||||||||||||| ||und||
020			_a0-07-063454-8
082			_a621.382 SIN
100			_aSingh, R. P. Sapre, S.D.
245		0	_aCommunication systems
250			_a2nd
260			_aTata mcgraw hill company Ltd _bNew Delhi _c2007
300			_b270
650			_aCOMMUNICATION SYSTEM
999			_c176115 _d176115