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020 _a0-7166-2600-4
040 _aBD-DhPL
_bEnglish
_cBD-DhPL
_dBD-DhPL
082 _a507 / W927t
110 _aWorld Book.
_9178014
245 _aChemistry today :
_b the World Book encyclopedia of science.
260 _aNew york :
_bWorld Book,
_cc 1992.
300 _aVols. :
_bill. ;
_c28 cm.
500 _aInclude index.
505 _aV. 3-- ;
508 _a47
650 _aDictionaries
_9276214
650 _aencyclopedias.
_9276215
942 _2ddc
_cBK