Sutcliff, R. (2000). The eagle of the ninth. Oxford University Press.
Chicago Style aipamenaSutcliff, Rosemary. The Eagle of the Ninth. New York: Oxford University Press, 2000.
MLA aipamenaSutcliff, Rosemary. The Eagle of the Ninth. Oxford University Press, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.