APA Citation

Lightbown, P. M., & Spada, N. (1993). How languages are learned. Oxford: Oxford University Press.

Chicago Style Citation

Lightbown, Patsy M., and Nina Spada. How Languages Are Learned. Oxford: Oxford University Press, 1993.

MLA Citation

Lightbown, Patsy M., and Nina Spada. How Languages Are Learned. Oxford: Oxford University Press, 1993.

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