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

Descrição:

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

Adicionado na linha do tempo:

Historia del Desarrollo Sostenible

ByPatricia Ramírez Ornelas

29 jan 2018

0

0

468

Data:

20 set 1979 ano

Agora

~ 46 years ago

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