00338nam a2200157Ia 4500008004100000020001800041035001000059082001300069100001500082245002500097250000600122260002900128300000800157500000900165650000600174210723s9999||||xx |||||||||||||| ||und||  a0 17 448061 X  a27412  a541BHIL  aHill, G. C 0aChemistry In Context  a-  aAustraliabThomas Nelson  a533  a1281  a-