APA Style

Hall, J, E, (, E., Guyton, A, C. (c2011). Guyton and Hall textbook of medical physiology. (12th ed.). : Philadelphia, PA: Saunders/Elsevier.

MLA Style

Hall, John, E., (John, Edward)., Guyton, Arthur, C. "Guyton and Hall textbook of medical physiology.". 12th ed. : Philadelphia, PA: Saunders/Elsevier, c2011. Text.