APA aipamena

Hashemi, L. (2011). Objective PET: Workbook with answers. Cambridge, UK: Cambridge University Press.

Chicago Style aipamena

Hashemi, Louise. Objective PET: Workbook With Answers. Cambridge, UK: Cambridge University Press, 2011.

MLA aipamena

Hashemi, Louise. Objective PET: Workbook With Answers. Cambridge, UK: Cambridge University Press, 2011.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.