Seligman, M. E. P. (2006). Learned optimism: How to change your mind and your life (First vintage books edition.). Vintage Books.
Chicago-Zitierstil (17. Ausg.)Seligman, Martin E. P. Learned Optimism: How to Change Your Mind and Your Life. First vintage books edition. New York: Vintage Books, 2006.
MLA-Zitierstil (9. Ausg.)Seligman, Martin E. P. Learned Optimism: How to Change Your Mind and Your Life. First vintage books edition. Vintage Books, 2006.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.