APA Style Citation

Carolyn Porco Quotes. (n.d.). BrainyQuote.com. Retrieved October 17, 2019, from BrainyQuote.com Web site: https://www.brainyquote.com/quotes/carolyn_porco_933108

Chicago Style Citation

Carolyn Porco Quotes. BrainyQuote.com, BrainyMedia Inc, 2019. https://www.brainyquote.com/quotes/carolyn_porco_933108, accessed October 17, 2019.

MLA Style Citation

"Carolyn Porco Quotes." BrainyQuote.com. BrainyMedia Inc, 2019. 17 October 2019. https://www.brainyquote.com/quotes/carolyn_porco_933108