APA aipamena

Ridpath, I., & Ian Ridpath. (2003). A. Oxford,New York: Oxford University Press.

Chicago Style aipamena

Ridpath, Ian, và Ian Ridpath. A. Oxford,New York: Oxford University Press, 2003.

MLA aipamena

Ridpath, Ian, và Ian Ridpath. A. Oxford,New York: Oxford University Press, 2003.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.