Cita APA (7a ed.)
Porter, B. F. (2010). What the tortoise taught us: The story of philosophy. Rowman & Littlefield Publishers.
Cita Chicago Style (17a ed.)
Porter, Burton Frederick. What the Tortoise Taught Us: The Story of Philosophy. Lanham, Md.: Rowman & Littlefield Publishers, 2010.
Cita MLA (9a ed.)
Porter, Burton Frederick. What the Tortoise Taught Us: The Story of Philosophy. Rowman & Littlefield Publishers, 2010.
Precaución: Estas citas no son 100% exactas.