(1996). Performance and competence in second language acquisition. Cambridge: Cambridge University Press.
Chicago Style aipamenaPerformance and Competence in Second Language Acquisition. Cambridge: Cambridge University Press, 1996.
MLA aipamenaPerformance and Competence in Second Language Acquisition. Cambridge: Cambridge University Press, 1996.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.