Cita APA (7a ed.)

Campbell, C., & Smith, J. (2009). English for academic study: Listening [CD-ROM] : course book (Fully revised.). Garnet Publishing.

Cita Chicago Style (17a ed.)

Campbell, Colin, y Jonathan Smith. English for Academic Study: Listening [CD-ROM] : Course Book. Fully revised. Reading: Garnet Publishing, 2009.

Cita MLA (9a ed.)

Campbell, Colin, y Jonathan Smith. English for Academic Study: Listening [CD-ROM] : Course Book. Fully revised. Garnet Publishing, 2009.