APA aipamena

Oxenden, C., Hamilton, G., & Latham-Koenig, C. (1999). English file: Intermediate workbook. New York: Oxford University Press.

Chicago Style aipamena

Oxenden, Clive., Gill Hamilton, và Christina Latham-Koenig. English File: Intermediate Workbook. New York: Oxford University Press, 1999.

MLA aipamena

Oxenden, Clive., Gill Hamilton, và Christina Latham-Koenig. English File: Intermediate Workbook. New York: Oxford University Press, 1999.