APA (7th ed.) Citation

Johnson, L. R. (1981). Physiology of the gastrointestinal tract. Raven Press.

Chicago Style (17th ed.) Citation

Johnson, Leonard R. Physiology of the Gastrointestinal Tract. New York: Raven Press, 1981.

MLA (9th ed.) Citation

Johnson, Leonard R. Physiology of the Gastrointestinal Tract. Raven Press, 1981.