000 00185 a2200085 4500
020 _a9781406210675
082 _aJ 541.39 HART
100 _aHartman Eve
_92935
245 _aChemical reaction
999 _c760510
_d760509
942 _w429
_xElizabeth Motloung
_y429
_zElizabeth Motloung