Cita APA (7a ed.)

Wallwork, A. (2001). Discussions A-Z advanced: A Resource book of speaking activities. Cambridge University.

Cita Chicago Style (17a ed.)

Wallwork, Adrian. Discussions A-Z Advanced: A Resource Book of Speaking Activities. Cambridge: Cambridge University, 2001.

Cita MLA (9a ed.)

Wallwork, Adrian. Discussions A-Z Advanced: A Resource Book of Speaking Activities. Cambridge University, 2001.