APA (7th ed.) Citation

Olmen, D., Brisard, F., & Mortelmans, T. (2019). Aspects of Linguistic Variation. De Gruyter. https://doi.org/10.1515/9783110607963

Chicago Style (17th ed.) Citation

Olmen, Daniël, Frank Brisard, and Tanja Mortelmans. Aspects of Linguistic Variation. De Gruyter, 2019. https://doi.org/10.1515/9783110607963.

MLA (9th ed.) Citation

Olmen, Daniël, et al. Aspects of Linguistic Variation. De Gruyter, 2019. https://doi.org/10.1515/9783110607963.