Silverstain, F. E. (1997). Gastrointestinal endoscopy. London: Mosby-Wolfe.
Chicago Style aipamenaSilverstain, Fred E. Gastrointestinal Endoscopy. London: Mosby-Wolfe, 1997.
MLA aipamenaSilverstain, Fred E. Gastrointestinal Endoscopy. London: Mosby-Wolfe, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.