Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

Mackey, Alison, e Susan M. Gass. Research Methods in Second Language Acquisition: A Practical Guide. West Sussex, [Eng.]: Wiley-Blackwell, 2012.

Citatione MLA (9a ed.)

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