APA (7th ed.) Citation

Coulmas, F. (2015). Contact, variation and competition of languages. De Gruyter Mouton.

Chicago Style (17th ed.) Citation

Coulmas, Florian. Contact, Variation and Competition of Languages. Berlin: De Gruyter Mouton, 2015.

MLA (9th ed.) Citation

Coulmas, Florian. Contact, Variation and Competition of Languages. De Gruyter Mouton, 2015.

Warning: These citations may not always be 100% accurate.