Seliger, H. W., & Shohamy, E. (2011). Second language research methods. Oxford: Oxford University.
Chicago Style aipamenaSeliger, Herbert W., và Elana Shohamy. Second Language Research Methods. Oxford: Oxford University, 2011.
MLA aipamenaSeliger, Herbert W., và Elana Shohamy. Second Language Research Methods. Oxford: Oxford University, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.