APA (7th ed.) Zitazioa
ebrary, Inc, & Stein, M. R. (1999). Gastroesophageal reflux disease and airway disease. Marcel Dekker.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, eta Mark R. Stein. Gastroesophageal Reflux Disease and Airway Disease. New York: Marcel Dekker, 1999.
MLA (9th ed.) Zitazioa
ebrary, Inc, eta Mark R. Stein. Gastroesophageal Reflux Disease and Airway Disease. Marcel Dekker, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.