Cita APA (7th ed.)

ebrary, Inc, Johnson, L. R., & Ghishan, F. K. (2012). Physiology of the gastrointestinal tract (5th ed.). Elsevier Academic Press.

Cita Chicago (17th ed.)

ebrary, Inc, Leonard R. Johnson, i Fayez K. Ghishan. Physiology of the Gastrointestinal Tract. 5th ed. Burlington, MA: Elsevier Academic Press, 2012.

Cita MLA (9th ed.)

ebrary, Inc, et al. Physiology of the Gastrointestinal Tract. 5th ed. Elsevier Academic Press, 2012.