ebrary, Inc, & Grazier, K. R. (2008). The science of Dune: Unauthorized exploration into the real science behind Frank Herbert's fictional universe. BenBella Books.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)ebrary, Inc, و Kevin Robert Grazier. The Science of Dune: Unauthorized Exploration into the Real Science Behind Frank Herbert's Fictional Universe. Dallas, TX: BenBella Books, 2008.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)ebrary, Inc, و Kevin Robert Grazier. The Science of Dune: Unauthorized Exploration into the Real Science Behind Frank Herbert's Fictional Universe. BenBella Books, 2008.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.