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041			_aEnglish
082			_a510/SAW/MAT
100			_aW. W. SAWYER
245			_aMATHEMATICIAN'S DELIGHT
260			_bPENGUIN BOOKS _aLondan _c1943
300			_c238P
650			_aMATHEMATICS
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999			_c70593 _d70593