APA aipamena

Tytgat, G. (1999). Helicobacter pylori—reflections for the next millennium.

Chicago Style aipamena

Tytgat, G. Helicobacter Pylori—reflections for the Next Millennium. 1999.

MLA aipamena

Tytgat, G. Helicobacter Pylori—reflections for the Next Millennium. 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.