APA (7th ed.) Zitazioa
ebrary, Inc, & Johnson, L. R. (2006). Physiology of the gastrointestinal tract (4th ed.). Elsevier Academic Press.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, eta Leonard R. Johnson. Physiology of the Gastrointestinal Tract. 4th ed. Amsterdam ; Boston: Elsevier Academic Press, 2006.
MLA (9th ed.) Zitazioa
ebrary, Inc, eta Leonard R. Johnson. Physiology of the Gastrointestinal Tract. 4th ed. Elsevier Academic Press, 2006.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.