000 00304nam a2200121Ia 4500
008 250224s9999 xx 000 0 und d
020 _a9780064452014
082 _aJ531.14BRA
100 _aBranley Franklyn
245 0 _aGravity is a Mystery
260 _bHarperCollins Publishers
_c1986
942 _cJBK
999 _c457222
_d457222