000			00366nam a2200121Ia 4500
008			220217s9999||||xx |||||||||||||| ||und||
082			_a621.382 2 DAS
100			_aDas, J and others _97586
245		0	_aPrinciples of digital communication
260			_aNew age international _bNew Delhi _c2010
300			_aXV,645p.;28cm _b235
650			_aCOMMUNICATION SYSTEM
999			_c181270 _d181270