APA aipamena

Nunan, D., & David Nunan. (1992). Research methods in language learning. Cambridge, New York: Cambridge Univ. Press.

Chicago Style aipamena

Nunan, David, và David Nunan. Research Methods in Language Learning. Cambridge, New York: Cambridge Univ. Press, 1992.

MLA aipamena

Nunan, David, và David Nunan. Research Methods in Language Learning. Cambridge, New York: Cambridge Univ. Press, 1992.