000 00276nam a2200121Ia 4500
001 335
008 190520s9999 xx 000 0 und d
020 _a0618277226
100 1 _aHoughton Mifflin Harcourt
245 1 0 _aMath
260 _bHoughton Mifflin Harcourt
942 _cCA
999 _c12097
_d12097