APA (7e ed.) Bronvermelding

ebrary, Inc, & Johnson, L. R. (2006). Physiology of the gastrointestinal tract (4th ed.). Elsevier Academic Press.

Chicago (17e ed.) Bronvermelding

ebrary, Inc, en Leonard R. Johnson. Physiology of the Gastrointestinal Tract. 4th ed. Amsterdam ; Boston: Elsevier Academic Press, 2006.

MLA (9e ed.) Bronvermelding

ebrary, Inc, en Leonard R. Johnson. Physiology of the Gastrointestinal Tract. 4th ed. Elsevier Academic Press, 2006.