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020 _a0393093859
040 _aUOEL
_cDLC
_dDLC
050 0 0 _aQD33
_b.P6
082 0 0 _a540
100 1 _aPorterfield, William W.
245 1 0 _aConcepts of chemistry
_c[by] William W. Porterfield.
250 _a[1st ed.]
260 _aNew York,
_bNorton
_c[1972]
300 _axii, 948 p.
_billus.
_c24 cm.
350 _a$12.95
504 _aIncludes bibliographies.
650 0 _aChemistry.
906 _a7
_bcbc
_corignew
_d2
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_f19
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_cLL
999 _c5596
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