000 00326nam a2200145 a 4500
003 DLC
005 20210219152740.0
035 _aUPN01000059775
245 0 0 _aCOMO VES?
260 _aDistrito Federal, Mexico :
_bUNAM,
_c1999
310 _aMensual
653 0 _aDIVULGACION CIENTIFICA
905 _aRevista
999 _c59682
_d59682