Lua APA (7ú heag.)
Porter, B. F. (2010). What the tortoise taught us: The story of philosophy. Rowman & Littlefield Publishers.
Lua i Stíl Chicago (17ú heag.)
Porter, Burton Frederick. What the Tortoise Taught Us: The Story of Philosophy. Lanham, Md.: Rowman & Littlefield Publishers, 2010.
Lua MLA (9ú heag.)
Porter, Burton Frederick. What the Tortoise Taught Us: The Story of Philosophy. Rowman & Littlefield Publishers, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.