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

Descrizione:

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

Aggiunto al nastro di tempo:

Historia del Desarrollo Sostenible

ByPatricia Ramírez Ornelas

29 gen 2018

0

0

470

Data:

20 sett 1979 anni

Adesso

~ 46 years ago

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