APA Style Citation

Martin Seligman Quotes. (n.d.). BrainyQuote.com. Retrieved December 9, 2019, from BrainyQuote.com Web site: https://www.brainyquote.com/quotes/martin_seligman_563890

Chicago Style Citation

Martin Seligman Quotes. BrainyQuote.com, BrainyMedia Inc, 2019. https://www.brainyquote.com/quotes/martin_seligman_563890, accessed December 9, 2019.

MLA Style Citation

"Martin Seligman Quotes." BrainyQuote.com. BrainyMedia Inc, 2019. 9 December 2019. https://www.brainyquote.com/quotes/martin_seligman_563890