000 00287nam a2200121Ia 4500
008 240531s9999 xx 000 0 und d
020 _a0 87475 089 X
082 _aR500SCI
100 _aNULL
245 0 _aScience supplement
260 _aNew York
_bWebster &Home
_c1998
942 _cAREF
999 _c325950
_d325950