APA aipamena

Ireland, S. (2010). Pet direct: Workbook with answers. Cambridge: Cambridge University Press.

Chicago Style aipamena

Ireland, Sue. Pet Direct: Workbook With Answers. Cambridge: Cambridge University Press, 2010.

MLA aipamena

Ireland, Sue. Pet Direct: Workbook With Answers. Cambridge: Cambridge University Press, 2010.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.