Lightbown, P. M., & Spada, N. (1993). How languages are learned. Oxford: Oxford University Press.
Chicago Style CitationLightbown, Patsy M., and Nina Spada. How Languages Are Learned. Oxford: Oxford University Press, 1993.
MLA CitationLightbown, Patsy M., and Nina Spada. How Languages Are Learned. Oxford: Oxford University Press, 1993.
Warning: These citations may not always be 100% accurate.