APA Style Citation

Nick Sagan Quotes. (n.d.). BrainyQuote.com. Retrieved October 17, 2019, from BrainyQuote.com Web site: https://www.brainyquote.com/quotes/nick_sagan_841954

Chicago Style Citation

Nick Sagan Quotes. BrainyQuote.com, BrainyMedia Inc, 2019. https://www.brainyquote.com/quotes/nick_sagan_841954, accessed October 17, 2019.

MLA Style Citation

"Nick Sagan Quotes." BrainyQuote.com. BrainyMedia Inc, 2019. 17 October 2019. https://www.brainyquote.com/quotes/nick_sagan_841954