APA aipamena

Crystal, D. e. (2000). The Cambridge factfinder. Cambridge University Press.

Chicago Style aipamena

Crystal, David ed. The Cambridge Factfinder. Cambridge, UK: Cambridge University Press, 2000.

MLA aipamena

Crystal, David ed. The Cambridge Factfinder. Cambridge University Press, 2000.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.