APA (7th ed.) Citation

Guyton, A. C. (1991). Textbook of medical physiology (8th ed.). Saunders.

Chicago Style (17th ed.) Citation

Guyton, Arthur C. Textbook of Medical Physiology. 8th ed. Philadelphia [etc.]: Saunders, 1991.

MLA (9th ed.) Citation

Guyton, Arthur C. Textbook of Medical Physiology. 8th ed. Saunders, 1991.