APA aipamena

Sinatra, F. R. (1997). Helicobacter pylori infection: Pediatric aspects.

Chicago Style aipamena

Sinatra, F R. Helicobacter Pylori Infection: Pediatric Aspects. 1997.

MLA aipamena

Sinatra, F R. Helicobacter Pylori Infection: Pediatric Aspects. 1997.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.