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28 dic 1986 anni - Protocolo de Montreal

Descrizione:

Acuerdo internacional para proteger la capa de ozono.

Aggiunto al nastro di tempo:

Antecedentes del desarrollo sustentable

ByArmando Martinez
4 mesi fa
0
0
182

Data:

28 dic 1986 anni
Adesso
~ 38 years ago
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