000 00263nam a2200109Ia 4500
082 _a511
_bMOR
100 _aMorristown
245 _aModern arithmetic Through discovery
_cMorristown
260 _aAmerica
_bSilver burdettt company
_c1963
300 _a362
942 _cBK
999 _c6871
_d6871