MLA

Heine, Bernd, and Tania Kuteva. The Changing Languages of Europe. Oxford: Oxford university press, 2006.

APA

Heine, B., & Kuteva, T. (2006). The changing languages of Europe. Oxford: Oxford university press.

Chicago

Heine, Bernd, and Tania Kuteva. The Changing Languages of Europe. Oxford: Oxford university press, 2006.