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1 Jan 1998 Jahr - Positive Psychology

Beschreibung:

Martin Seligman chooses positive psychology as the theme for his speech to the American Psychological Association, as its incoming president.

Zugefügt zum Band der Zeit:

Major Milestones in the History of Psychology

BySebastian Rivest

16 Mär 2018

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Datum:

1 Jan 1998 Jahr

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~ 27 years ago

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