Citazione Stile APA (7a Edizione)

Ellis, R. (2012). Understanding second language acquisition. Oxford University Press.

Citazione stile Chigago Style (17a edizione)

Ellis, Rod. Understanding Second Language Acquisition. Oxford ; New York: Oxford University Press, 2012.

Citatione MLA (8a ed.)

Ellis, Rod. Understanding Second Language Acquisition. Oxford University Press, 2012.