Seliger, H. W., & Shohamy,Elana. (2003). Second language research methods. Cambridge University Press.
Chicago Style aipamenaSeliger, Herbert W., and Shohamy,Elana. Second Language Research Methods. Cambridge [England] ; New York: Cambridge University Press, 2003.
MLA aipamenaSeliger, Herbert W., and Shohamy,Elana. Second Language Research Methods. Cambridge University Press, 2003.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.