000 00261nam a2200109Ia 4500
008 190829s9999||||xx |||||||||||||| ||und||
100 _aBrent, Robert
245 0 _aSecrets of Chemistry
260 _bPaul Hamlyn
_aLondon
_c1965
650 _aChemistry
942 _cBK
999 _c7167
_d7167