000 00273nam a2200121Ia 4500
001 2073
008 170420s9999 xx 000 0 und d
020 _a9780739892039
100 1 _aRobert Abbott
245 1 0 _amastering Math Level D
260 _bHarcourtAchieve
942 _cAP
999 _c9199
_d9199