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020 _a0471121207
040 _cSIUNPA
041 _aeng
044 _aUS
080 _a54 H838c2
100 _aHouk Clifford C..
700 _aPost Richard.
245 _aChemistry concepts and problems, A self-Teaching Guide
_b : A self-Teaching Guide
250 _a2nd. ed
260 _aNew York
_b
_c , 1996
300 _axii, 303 p. :
_bil. ;
650 _aQUIMICA
650 _aGUIA DE ESTUDIO
942 _cBK
999 _c13828
_d13828