000 00310nam a2200121Ia 4500
008 250224s9999 xx 000 0 und d
020 _a690315201
082 _aJ511DEN
100 _aJ.Richard Dennis
245 0 _aFractions are parts of things
260 _bThomas Y.crowell company
_c1971
942 _cJBK
999 _c440786
_d440786