APA-referens (7:e uppl.)

Mackey, A., & Gass, S. M. (2012). Research methods in second language acquisition: A practical guide. Wiley-Blackwell.

Chicago-referens (17:e uppl.)

Mackey, Alison, och Susan M. Gass. Research Methods in Second Language Acquisition: A Practical Guide. Chichester, West Sussex ; Malden, Mass.: Wiley-Blackwell, 2012.

MLA-referens (8:e uppl.)

Mackey, Alison, och Susan M. Gass. Research Methods in Second Language Acquisition: A Practical Guide. Wiley-Blackwell, 2012.