Cita APA

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

Citación estilo Chicago

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

Cita MLA

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