APA aipamena

 Lightbown, P. (2013).  How languages are learned.  Oxford University Press.

Chicago Style aipamena

 Lightbown, Patsy.  How Languages Are Learned.  Oxford University Press, 2013.

MLA aipamena

 Lightbown, Patsy.  How Languages Are Learned.  Oxford University Press, 2013.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.