APA-referens (7:e uppl.)

Kessler, J., Lenzing, A., & Liebner, M. (2016). Developing, modelling and assessing second languages. John Benjamins Publishing Company.

Chicago-referens (17:e uppl.)

Kessler, Jorg-U, Anke Lenzing, och Mathias Liebner. Developing, Modelling and Assessing Second Languages. Amsterdam, [Netherlands] ; Philadelphia, [Pennsylvania]: John Benjamins Publishing Company, 2016.

MLA-referens (9:e uppl.)

Kessler, Jorg-U, et al. Developing, Modelling and Assessing Second Languages. John Benjamins Publishing Company, 2016.