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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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Условия труда (1 ene 1870 año – 1 feb 1924 año)
Descripción:
В. И. Ленин изучал условия труда как фактор роста революционного настроения масс
Añadido al timeline:
История развития образовательной области "БЖ"
By
Дионис Чеботарь
19 dic 2017
0
0
626
fecha:
1 ene 1870 año
1 feb 1924 año
~ 54 years
Fotos:
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