APA Style Citation

Richard P. Feynman Quotes. (n.d.). BrainyQuote.com. Retrieved September 15, 2019, from BrainyQuote.com Web site: https://www.brainyquote.com/quotes/richard_p_feynman_719029

Chicago Style Citation

Richard P. Feynman Quotes. BrainyQuote.com, BrainyMedia Inc, 2019. https://www.brainyquote.com/quotes/richard_p_feynman_719029, accessed September 15, 2019.

MLA Style Citation

"Richard P. Feynman Quotes." BrainyQuote.com. BrainyMedia Inc, 2019. 15 September 2019. https://www.brainyquote.com/quotes/richard_p_feynman_719029