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1 Okt 1920 Jahr - Hawthorne Electric Company set up a series of experiments designed to discern how changes in environment and design changed the productivity of their employees.
Zugefügt zum Band der Zeit:
22 Nov 2017
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301
Jessa P. Iraula I4
Datum:
1 Okt 1920 Jahr
Jetzt
~ 103 years ago