APA (7th ed.) Zitazioa
Walker, R. H. (2011). The differential diagnosis of chorea. Oxford University Press.
Chicago Style (17th ed.) Zitazioa
Walker, Ruth H. The Differential Diagnosis of Chorea. Oxford ; New York: Oxford University Press, 2011.
MLA (9th ed.) Zitazioa
Walker, Ruth H. The Differential Diagnosis of Chorea. Oxford University Press, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.