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4 янв 1987 г. - En 1987 seincorporo como un deber del Estado en la Constitución Política, la preservación y restauración del equilibrio ecológicoy la protección al ambiente
Добавлено на ленту времени:
Actividad A2. Línea del tiempo La gestión ambiental en México
By
Ivan Ordinola
3 мес назад
0
0
2200
Дата:
4 янв 1987 г.
Сейчас
~ 38 г назад
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