APA (7th ed.) Citation

Lightbown, P., & Spada, N. (2003). How languages are learned (Second edition.). Oxford University Press.

Chicago Style (17th ed.) Citation

Lightbown, Patsy, and Nina Spada. How Languages Are Learned. Second edition. Oxford: Oxford University Press, 2003.

MLA (8th ed.) Citation

Lightbown, Patsy, and Nina Spada. How Languages Are Learned. Second edition. Oxford University Press, 2003.

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