000 00333nam a2200145Ia 4500
001 12710
008 170722s9999 xx 000 0 und d
100 _aCrooks, Thomas C.
245 _aContemporary arithmetic /
260 _c1968.
653 _aArithmetic
653 _aMathematics
700 _aHancock, Harry L.
942 _cGEN
999 _c76199
_d76199