APA ציטוט

Oxenden, C. (2009). American English file: Workbook 4. Oxford: Oxford University Press.

Trích dẫn kiểu Chicago

Oxenden, Clive. American English File: Workbook 4. Oxford: Oxford University Press, 2009.

ציטוט MLA

Oxenden, Clive. American English File: Workbook 4. Oxford: Oxford University Press, 2009.