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AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
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12 set 1929 ano - Studied the effects of lighting on work productivity in Western Electric's Factory at Hawthorne near Chicago
Adicionado na linha do tempo:
n bn
By
Allen
11 nov 2017
0
0
350
Data:
12 set 1929 ano
Agora
~ 94 years ago
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