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30 déc. 1974 - Стали создаваться учебники природоведения для 2-3 классов, одним из авторов издаваемых была Л.П. Чистова «Дневников наблюдений».

Ajouté au bande de temps:

лента

ByАнна Панфилова
15 oct. 2017
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Date:

30 déc. 1974
Maintenaint
~ Il y a 49 ans
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