000			00367nam a2200145Ia 4500
008			230106s9999 xx 000 0 und d
082			_a621.381 _bDA-P
100			_aDas,J
245		0	_aPrinciples of digital communications
250			_a1st Ed.
260			_aNew Delhi _bWiley Eastern Limited _c1986
300			_a645
650			_aElectronics Engineering
942			_cBK
999			_c280 _d280