Katzner, K. (1975). The language of the world. Funk and Wagnals.
Chicago Style aipamenaKatzner, Kenneth. The Language of the World. New York: Funk and Wagnals, 1975.
MLA aipamenaKatzner, Kenneth. The Language of the World. Funk and Wagnals, 1975.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.