000 00284nam a2200109Ia 4500
001 4709
008 190520s9999 xx 000 0 und d
020 _a9780544056756
100 1 _aHoughton Mifflin Harcourt publishing company.
245 1 0 _aGo Math: Middle school. Grade 7
942 _cCA
999 _c16453
_d16453