000 00280nam a2200121Ia 4500
001 2327
008 170420s9999 xx 000 0 und d
020 _a9780673593047
100 1 _aDr. Timothy M. Cooney
245 1 0 _aScience Portada Cometa
260 _bScott Foresman
942 _cAP
999 _c9453
_d9453