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19 окт 1917 г. - he studied sociology with the noted sociologist Robert E. Park at the University of Chicago, Illinois where he earned a Ph.D. in 1917
Добавлено на ленту времени:
21 ноя 2018
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Charles S. Johnson
Дата:
19 окт 1917 г.
Сейчас
~ 106 г назад