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Условия труда (1 Jan 1870 Jahr – 1 Feb 1924 Jahr)

Beschreibung:

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

Zugefügt zum Band der Zeit:

История развития образовательной области "БЖ"

ByДионис Чеботарь

19 Dez 2017

0

0

629

Datum:

1 Jan 1870 Jahr

1 Feb 1924 Jahr

~ 54 years

Abbildungen:

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