APA

Barrett K. E., . (2014). Gastrointestinal physiology. New York: McGraw-Hill.

Chicago

Barrett Kim E, . 2014. Gastrointestinal physiology. New York: McGraw-Hill.

Harvard

Barrett K. E., . (2014). Gastrointestinal physiology. New York: McGraw-Hill.

MLA

Barrett Kim E, . Gastrointestinal physiology. New York: McGraw-Hill. 2014.