00385nam a2200169 4500 978059507554 540.151 RAM Ramsden,E.N Calculations for A-Level chemistry 2 ed Cheltenham Stanley Thornes 1987 280 p calculations mathematics chemistry REF 1199 1199 0 0 0 NFIC IC IC GEN 2015-06-18 0 540.151 RAM 003513 2015-06-18 00:00:00 2015-06-18 REF