000			00402nam a2200133Ia 4500
008			220217s9999||||xx |||||||||||||| ||und||
020			_a0-85226-150-0
082			_a621.382 DAS
100			_aDas, J Mullick, S.K and Chatterjee, P.K _91915
245		0	_aPrinciples of digital communications
260			_aNew age international _bBangalore _c2001
300			_b230
650			_aCOMMUNICATION SYSTEM
999			_c169018 _d169018