00280nam a2200121 a 4500041000800000082001800008100002300026245003600049300001000085650002600095650001400121650002300135  aspa  a923.9bM39a43  aMeyer-Abich, Adolf  aAlejandro de Humbolt, 1769-1969  a181 p  aDE HUMBOLT, ALEJANDRO  aBIOGRAFIA  aHISTORIA 1769-1969