000 00335nam a2200145Ia 4500
020 _a9780862725327
082 _b803
_a500
100 _a"Steve Parker"
245 0 _aSimple chemistry
260 _bLondon : Kingfisher, 1990.
_c2000
300 _a40
944 _cBK
999 _c355254
_d355254