000			00376nam a2200145Ia 4500
008			220217s9999||||xx |||||||||||||| ||und||
020			_a0-07-118183-0
082			_a621.382 PRO
100			_aProakis, John, G _91128
245		0	_aDigital communications
250			_a4th
260			_aTata Mcgraw hill _bBoston _c2001
300			_b0
650			_aCOMMUNICATION SYSTEM
999			_c167757 _d167757