APA aipamena

Walton, R. (2000). Initiative: A course for advanced learners. Cambridge: Cambridge University Press.

Chicago Style aipamena

Walton, Richard. Initiative: A Course for Advanced Learners. Cambridge: Cambridge University Press, 2000.

MLA aipamena

Walton, Richard. Initiative: A Course for Advanced Learners. Cambridge: Cambridge University Press, 2000.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.