APA-referens

Michael Duckworth. (2000). Countdown to first certificate ( Workbook ). Oxford: Oxford Univ. Press.

Chicago-stil citat

Michael Duckworth. Countdown to First Certificate ( Workbook ). Oxford: Oxford Univ. Press, 2000.

MLA-referens

Michael Duckworth. Countdown to First Certificate ( Workbook ). Oxford: Oxford Univ. Press, 2000.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.