Cita APA (7th ed.)

Richards J. C. Jack & Trew G. Grant. (2011). Expanding Tactics for Listening: Class audio (3rd ed.). Oxford, Oxford University Press, 2011.

Cita Chicago (17th ed.)

Richards J. C. Jack i Trew G. Grant. Expanding Tactics for Listening: Class Audio. 3rd ed. Oxford, Oxford University Press, 2011, 2011.

Cita MLA (9th ed.)

Richards J. C. Jack i Trew G. Grant. Expanding Tactics for Listening: Class Audio. 3rd ed. Oxford, Oxford University Press, 2011, 2011.