000			00331nam a2200145Ia 4500
008			220421s9999||||xx |||||||||||||| ||und||
020			_c160
040			_aET
100			_aVerma Dinesh
245		0	_aElements of System Analysis & Design
260			_bGully Baba Pub.H. _aDelhi
300			_a324
500			_a60247
942			_cBK
999			_c66210 _d66210