000			00363nam a2200133Ia 4500
008			210219s9999||||xx |||||||||||||| ||und||
082			_a658.403 _bC439S
100			_aChange Richard Y. _911257
245		0	_aStep by step problem solving. _cChange Richard Y.
260			_aNew Delhi. _bWheeler. _c1993
300			_avii; 106p
942			_cBK
950			_o658.403 C439S
999			_c32334 _d32334