000 00342nam a2200145Ia 4500
020 _a0748717382
082 _bT 233
_a510
100 _a"Ramsden, E.N."
245 0 _aCalculatons for GCSE Chemistry
260 _bStanley Thornes
_aNA
_c1987
300 _a95
944 _cTB
999 _c136485
_d136485