Duke-Elder, S. (1959). DOCUMENTA OPHTHALMOLOGICA.
Chicago Style aipamenaDuke-Elder, Stewart. DOCUMENTA OPHTHALMOLOGICA. 1959.
MLA aipamenaDuke-Elder, Stewart. DOCUMENTA OPHTHALMOLOGICA. 1959.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
Duke-Elder, S. (1959). DOCUMENTA OPHTHALMOLOGICA.
Chicago Style aipamenaDuke-Elder, Stewart. DOCUMENTA OPHTHALMOLOGICA. 1959.
MLA aipamenaDuke-Elder, Stewart. DOCUMENTA OPHTHALMOLOGICA. 1959.