Citazione Stile APA (7a Edizione)

Ellis, R. (2015). Understanding second language acquisition (Second edition.). Oxford University Press.

Citazione stile Chigago Style (17a edizione)

Ellis, Rod. Understanding Second Language Acquisition. Second edition. Oxford: Oxford University Press, 2015.

Citatione MLA (8a ed.)

Ellis, Rod. Understanding Second Language Acquisition. Second edition. Oxford University Press, 2015.