APA Style

Hall, J, E. (2012). Pocket Companion to Guyton and Hall Textbook of Medical Physiology (12th edn.). St. Louis, Missouri: Elsevier Saunders.

MLA Style

Hall, John, E.. "Pocket Companion to Guyton and Hall Textbook of Medical Physiology". 12th edn. St. Louis, Missouri: Elsevier Saunders, 2012. Text.