000 00291nam a2200121 a 4500
005 20140414093847.0
008 110304s19uu xx 00 eng d
050 _aCD 540
_bC42 2003
245 _aChemistry :
_bthe central science.
541 _eAV1374
650 _aChemistry
942 _cAVM
999 _c109705
_d109705