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020			_a1840853352
082			_a004 _bLEG
100			_aLegg, Roger _920301
245			_aRevise As Computing
260			_bLetts Education,
300			_a125p.; _bill. _c30cm
650		0	_aComputer programming, programs & data
942			_2ddc _cLM
999			_c148612 _d148612