APA aipamena

Wilson,Ken. (2007). Smart choice 3A workbook. Oxford: New York.

Chicago Style aipamena

Wilson,Ken. Smart Choice 3A Workbook. Oxford: New York, 2007.

MLA aipamena

Wilson,Ken. Smart Choice 3A Workbook. Oxford: New York, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.