000 00315nam a2200133 a 4500
005 20210219154440.0
008 030609s2000 mx r 000 0 spa d
035 _aUPN01000125192
049 _aSEP
050 4 _aAC70
_bB5 no.132
100 1 _aDuby, Gertrude
245 1 0 _a¿Hay razas inferiores? /
905 _aLibro
999 _c97371
_d97371