APA (7th ed.) Zitazioa

Clinics in Chest Medicine. Cambridge University Press.

Chicago Style (17th ed.) Zitazioa

Clinics in Chest Medicine. Cambridge University Press.

MLA (9th ed.) Zitazioa

Clinics in Chest Medicine. Cambridge University Press.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.