APA-viite (7. p.)

Duckworth M & Turner R. (2008). Business Result. Upper-Intermediate: Class CDs. New York, Oxford University Press, 2008.

Chicago-viite (17. p.)

Duckworth M ja Turner R. Business Result. Upper-Intermediate: Class CDs. New York, Oxford University Press, 2008, 2008.

MLA-viite (9. p.)

Duckworth M ja Turner R. Business Result. Upper-Intermediate: Class CDs. New York, Oxford University Press, 2008, 2008.