APA Style

Hall, J, E., Guyton, A, C. (2011). Guyton and Hall textbook of medical physiology : Textbook of medical physiology (12th ed.). Philadelphia: Saunders/Elsevier.

MLA Style

Hall, John, E., Guyton, Arthur, C. "Guyton and Hall textbook of medical physiology : Textbook of medical physiology". 12th ed. Philadelphia: Saunders/Elsevier, 2011. Text.