000 00337nam a22001697a 4500
020 _a-
022 _a-
082 _a540
_bWES
100 _aWest
245 _aCertificate Chemistry
_b-
_cWest John
250 _a1991
260 _aMadras
_bOxford University
_c1991
300 _a139
_e-
500 _a-
700 _a-
942 _cBK
999 _c15794
_d15794