Chey, W. Y. (1983). Functional Disorders of the Digestive Tract. Raven Press.
Cita Chicago (17th ed.)Chey, William Y. Functional Disorders of the Digestive Tract. New York: Raven Press, 1983.
Cita MLA (9th ed.)Chey, William Y. Functional Disorders of the Digestive Tract. Raven Press, 1983.
Atenció: Aquestes cites poden no estar 100% correctes.