Παραπομπή APA

Heine, B., & Kuteva, T. (2005). Language contact and grammatical change. Cambridge University Press.

Παραπομπή Chicago Style

Heine, Bernd, και Tania Kuteva. Language Contact and Grammatical Change. Cambridge ; New York: Cambridge University Press, 2005.

Παραπομπή MLA

Heine, Bernd, και Tania Kuteva. Language Contact and Grammatical Change. Cambridge University Press, 2005.