Cita APA

Lightbown, P. M. (1999). How languages are learned. Oxford: Oxford Univ. Press.

Chicago Style Citation

Lightbown, Patsy M. How Languages Are Learned. Oxford: Oxford Univ. Press, 1999.

Cita MLA

Lightbown, Patsy M. How Languages Are Learned. Oxford: Oxford Univ. Press, 1999.

Atenció: Aquestes cites poden no estar 100% correctes.