Jules Verne, Jules VERNE (2016). “Twenty Thousand Leagues Under The Sea / Vingt mille lieues sous les mers (Bilingual Edition: English - French / Édition bilingue: anglais - français)”, p.12, Jules Verne
Chogyam Trungpa (2010). “The Collected Works of Chogyam Trungpa: Volume Eight: Great Eastern Sun; Shambhala; Selected Writings”, p.47, Shambhala Publications
Melody Beattie (2013). “Melody Beattie 4 Title Bundle: Codependent No More and 3 Other Best Sellers by Melody Beattie: A collection of four Melody Beattie best sellers”, Hazelden Publishing