000 00281nam a2200109Ia 4500
008 240531s9999 xx 000 0 und d
082 _a11510CLA
100 _aClayton H.W.
245 2 _aA Natural approach to Mathematics.
260 _aOxford
_b Pergamon Press
_c1965
942 _cANF
999 _c314228
_d314228