H. Jackson Brown Jr. (2007). “Complete Life's Little Instruction Book: 1,560 Suggestions, Observations, and Reminders on How to Live a Happy and Rewarding Life”, p.270, Thomas Nelson Inc
"Edward Snowden on Why He Stood Up to the NSA: Mass Spying "Not Something I’m Willing to Live Under"". Interview with Amy Goodman, Juan González, www.truth-out.org. July 10, 2013.
Lady Mary Wortley Montagu (1825). “The Works of the Right Honourable Lady Mary Wortley Montagu: Including Her Correspondence, Poems, and Essays, Form Her Genuine Papers”, p.375