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20 janv. 1947 - Se crea el Instituto de Investigaciones Agrícolas
Ajouté au bande de temps:
Evolución de la Investigación Científica en México
By
Isis Valdes
12 oct. 2017
2
0
39562
Date:
20 janv. 1947
Maintenaint
~ Il y a 78 ans
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