Wayne W. Dyer (2009). “Your Erroneous Zones: Step-by-Step Advice for Escaping the Trap of Negative Thinking and Taking Control of Your Life”, p.32, Harper Collins
Richard Brautigan (1964). “Richard Brautigan's A Confederate General from Big Sur, Dreaming of Babylon, and The Hawkline Monster: Three Books in the Manner of Their Original Editions”, p.101, Houghton Mifflin Harcourt