000			00317nam a22001337a 4500
999			_c15135 _d15135
020			_a0895120461
082			_a001.6423WAL
100			_aWalker Roger S
245			_aUnderstanding Computer Science Applications
260			_bTaxes instruments _c1985
300			_a283p. ;
650			_aComputer Science
942			_cBK