(1969). The year book of medicine 1969. Chicago: Year Book Medical Pulishers.
Chicago Style aipamenaThe Year Book of Medicine 1969. Chicago: Year Book Medical Pulishers, 1969.
MLA aipamenaThe Year Book of Medicine 1969. Chicago: Year Book Medical Pulishers, 1969.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.