APA (7th ed.) Zitazioa
Barlow, D. (2011). Sexually transmitted infections (3rd ed.). Oxford University Press.
Chicago Style (17th ed.) Zitazioa
Barlow, David. Sexually Transmitted Infections. 3rd ed. Oxford ; New York: Oxford University Press, 2011.
MLA (9th ed.) Zitazioa
Barlow, David. Sexually Transmitted Infections. 3rd ed. Oxford University Press, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.