Positivity: Top-Notch Research Reveals the 3-to-1 Ratio That Will Change Your Life
Full Title: | Positivity: Top-Notch Research Reveals the 3-to-1 Ratio That Will Change Your Life |
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ISBN: | 0307393747 |
ISBN13: | 9780307393746 |
List Price: | USD $15.99 |
Authors: |
Fredrickson, Barbara |
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