000 00283nam a2200121Ia 4500
001 315
008 190520s9999 xx 000 0 und d
020 _a9780547587851
100 1 _aHoughton Mifflin Harcourt
245 1 0 _aGo Math!
260 _bHoughton Mifflin Harcourt
942 _cCA
999 _c12077
_d12077