000 00302nam a2200133Ia 4500
008 220509s9999 xx 000 0 und d
020 _a0
100 _aAngelo Douglas West
245 0 _aMathematical thinking problem solving
260 _bPearson
_c0
300 _a1
546 _aENGLISH
942 _CBK
999 _c2070
_d2070