APA aipamena

Swan Michael, & Catherine Walter. Cambridge english course: Student's book 3. Cambridge University Press.

Chicago Style aipamena

Swan Michael, và Catherine Walter. Cambridge English Course: Student's Book 3. Cambridge University Press.

MLA aipamena

Swan Michael, và Catherine Walter. Cambridge English Course: Student's Book 3. Cambridge University Press.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.