APA Style Citation

Os Guinness Quotes. (n.d.). BrainyQuote.com. Retrieved November 20, 2019, from BrainyQuote.com Web site: https://www.brainyquote.com/authors/os-guinness-quotes

Chicago Style Citation

Os Guinness Quotes. BrainyQuote.com, BrainyMedia Inc, 2019. https://www.brainyquote.com/authors/os-guinness-quotes, accessed November 20, 2019.

MLA Style Citation

"Os Guinness Quotes." BrainyQuote.com. BrainyMedia Inc, 2019. 20 November 2019. https://www.brainyquote.com/authors/os-guinness-quotes