Cita APA (7a ed.)

Hughes J. John & Naunton J. Jon. (2008). Business Result. Intermediate: Class CDs. New York, Oxford University Press, 2008.

Cita Chicago Style (17a ed.)

Hughes J. John y Naunton J. Jon. Business Result. Intermediate: Class CDs. New York, Oxford University Press, 2008, 2008.

Cita MLA (9a ed.)

Hughes J. John y Naunton J. Jon. Business Result. Intermediate: Class CDs. New York, Oxford University Press, 2008, 2008.