APA (7th ed.) Citation

Hyltenstam, K., Bartning, I., & Fant, L. (2018). High-Level Language Proficiency in Second Language and Multilingual Contexts.

Chicago Style (17th ed.) Citation

Hyltenstam, Kenneth, Inge Bartning, and Lars Fant. High-Level Language Proficiency in Second Language and Multilingual Contexts. 2018.

MLA (9th ed.) Citation

Hyltenstam, Kenneth, et al. High-Level Language Proficiency in Second Language and Multilingual Contexts. 2018.