000 00331nam a2200145Ia 4500
020 _a9780521356909
082 _b80
_a500
100 _a"JONES MARY"
245 0 _aBALANCED SCIENCE
260 _bNELSON,CAMBRIDGE
_aLondon
_c1993
300 _a630
944 _cBK
999 _c392811
_d392811