Cita APA (7th ed.)

Comrie, B. (2009). The World's major languages (2nd ed.). Routledge.

Cita Chicago (17th ed.)

Comrie, Bernard. The World's Major Languages. 2nd ed. London: Routledge, 2009.

Cita MLA (8th ed.)

Comrie, Bernard. The World's Major Languages. 2nd ed. Routledge, 2009.