Cita APA

Lightbown, P. M., & Patsy M. Lightbown; Nina Spada. (2000). How languages are learned. Oxford: Oxford University Press.

Chicago Style Citation

Lightbown, Patsy M., i Patsy M. Lightbown; Nina Spada. How Languages Are Learned. Oxford: Oxford University Press, 2000.

Cita MLA

Lightbown, Patsy M., i Patsy M. Lightbown; Nina Spada. How Languages Are Learned. Oxford: Oxford University Press, 2000.