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20 sept. 1979 - Programa Earth Watch del Consejo de Administración del Programa de las Naciones Unidas para el Medio Ambiente

Description:

Por primera vez se estudian los contaminantes atmosféricos, de manera específica.

Ajouté au bande de temps:

Historia del Desarrollo Sostenible

ByPatricia Ramírez Ornelas
29 janv. 2018
0
0
460

Date:

20 sept. 1979
Maintenaint
~ Il y a 46 ans
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