000 00287nam a2200109 u 4500
005 20210219155801.0
008 070920s2001 r 000 0 eng d
035 _aUPN01000152126
245 0 0 _aSecundaria 18 :
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_cOCDE.
260 _aMéxico :
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905 _aAu
999 _c124249
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