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Условия труда (1 gen 1870 anni – 1 feb 1924 anni)

Descrizione:

В. И. Ленин изучал условия труда как фактор роста революционного настроения масс

Aggiunto al nastro di tempo:

История развития образовательной области "БЖ"

ByДионис Чеботарь

19 dic 2017

0

0

620

Data:

1 gen 1870 anni

1 feb 1924 anni

~ 54 years

Immagini:

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