Bull, T. R. (1974). Color atlas of E N T diagnosis. Year Book Medical.
Chicago Style aipamenaBull, T. R. Color Atlas of E N T Diagnosis. Year Book Medical, 1974.
MLA aipamenaBull, T. R. Color Atlas of E N T Diagnosis. Year Book Medical, 1974.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.