APA (7th ed.) Zitazioa
Shmueli, U., & Clough, J. (2007). Irritable bowel syndrome: Answers at your fingertips. Class.
Chicago Style (17th ed.) Zitazioa
Shmueli, Udi, eta Joanne Clough. Irritable Bowel Syndrome: Answers at Your Fingertips. London: Class, 2007.
MLA (9th ed.) Zitazioa
Shmueli, Udi, eta Joanne Clough. Irritable Bowel Syndrome: Answers at Your Fingertips. Class, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.