APA (7th ed.) Citation

Seligman, M. E. P. (2006). Learned optimism: How to change your mind and your life. Vintage Books.

Chicago Style (17th ed.) Citation

Seligman, Martin E. P. Learned Optimism: How to Change Your Mind and Your Life. New York: Vintage Books, 2006.

MLA (9th ed.) Citation

Seligman, Martin E. P. Learned Optimism: How to Change Your Mind and Your Life. Vintage Books, 2006.