Gaya APA

Lightbown, Patsy M, Spada, Nina. (1999). How to languages are learned (2). New York: Oxford Uniersity Press.

Gaya Chicago

Lightbown, Patsy M, Spada, Nina. How to languages are learned. 2 New York: Oxford Uniersity Press, 1999. Text.

Gaya MLA

Lightbown, Patsy M, Spada, Nina. How to languages are learned. 2 New York: Oxford Uniersity Press, 1999. Text.

Gaya Turabian

Lightbown, Patsy M, Spada, Nina. How to languages are learned. 2 New York: Oxford Uniersity Press, 1999. Print.