Cita APA (7th ed.)

Craven, M. (2004). Listening extra: A resource book of multi-level skills activities (1a. ed.). Cambridge University.

Cita Chicago (17th ed.)

Craven, Miles. Listening Extra: A Resource Book of Multi-level Skills Activities. 1a. ed. Cambridge: Cambridge University, 2004.

Cita MLA (9th ed.)

Craven, Miles. Listening Extra: A Resource Book of Multi-level Skills Activities. 1a. ed. Cambridge University, 2004.