000			00378nam a2200181Ia 4500
008			240220s9999 xx 000 0 und d
041			_aENG
082			_a3
100			_aChen C. T.
245		0	_aSignals and systems
260			_aNew Delhi
260			_bTata Mcgraw Hill
260			_c2000
300			_a424p.
365			_b245
650			_aELECTRICAL
942			_cDBK
999			_c27976 _d27976