APA (7th ed.) Citation

Campbell, G. L. (2000). Compendium of the world's languages (Second edition.). Routledge.

Chicago Style (17th ed.) Citation

Campbell, George L. Compendium of the World's Languages. Second edition. London ; New York: Routledge, 2000.

MLA (8th ed.) Citation

Campbell, George L. Compendium of the World's Languages. Second edition. Routledge, 2000.