Seligman, Martin E P. Learned Optimism - How to Change Your Mind and Your Life. Knopf Doubleday Publishing Group, 2006.
eng

Martin E P Seligman

Learned Optimism

How to Change Your Mind and Your Life
  • Knopf Doubleday Publishing Group
  • 2006
  • Taschenbuch
  • 336 Seiten
  • ISBN 9781400078394

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