APA aipamena

Oxenden, C. (2008). American English file: Workbook 1. Oxford: Oxford University.

Chicago Style aipamena

Oxenden, Clive. American English File: Workbook 1. Oxford: Oxford University, 2008.

MLA aipamena

Oxenden, Clive. American English File: Workbook 1. Oxford: Oxford University, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.