APA aipamena

Richards, J. C., & Jack C Richards. (2005). Interchange: Intro. Cambridge: Cambridge University Press.

Chicago Style aipamena

Richards, Jack C., và Jack C Richards. Interchange: Intro. Cambridge: Cambridge University Press, 2005.

MLA aipamena

Richards, Jack C., và Jack C Richards. Interchange: Intro. Cambridge: Cambridge University Press, 2005.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.