APA (7th ed.) Citation

Katzner, K. (2002). The languages of the world (3. ed.). Routledge.

Chicago Style (17th ed.) Citation

Katzner, Kenneth. The Languages of the World. 3. ed. London [u.a.]: Routledge, 2002.

MLA (9th ed.) Citation

Katzner, Kenneth. The Languages of the World. 3. ed. Routledge, 2002.