APA (7th ed.) Citation

Plag, I., Arndt-Lappe, S., Braun, M., & Schramm, M. (2007). Introduction to English linguistics. Mouton de Gruyter.

Chicago Style (17th ed.) Citation

Plag, Ingo, Sabine Arndt-Lappe, Maria Braun, and Mareile Schramm. Introduction to English Linguistics. Berlin [u.a.]: Mouton de Gruyter, 2007.

MLA (9th ed.) Citation

Plag, Ingo, et al. Introduction to English Linguistics. Mouton de Gruyter, 2007.