APA Citation

Lightbown, P., & Spada, N. (2013). How languages are learned (Fourth edition.). Oxford: Oxford University Press.

Chicago Style Citation

Lightbown, Patsy., and Nina Spada. How Languages Are Learned. Fourth edition. Oxford: Oxford University Press, 2013.

MLA Citation

Lightbown, Patsy., and Nina Spada. How Languages Are Learned. Fourth edition. Oxford: Oxford University Press, 2013.

Warning: These citations may not always be 100% accurate.