000 00273nam a2200109 u 4500
005 20210219155810.0
008 071002s2004 r 000 0 eng d
035 _aUPN01000152535
245 0 0 _aCapsula posgrado UPN /
_cUPN.
260 _aMéxico :
_bUPN,
_cs. a.
905 _aAu
999 _c124658
_d124658