Cita APA (7a ed.)

Hugues, J. (2008). Language leader: Workbook with key and audio cd : intermediate. Pearson Education Limited.

Cita Chicago Style (17a ed.)

Hugues, John. Language Leader: Workbook with Key and Audio Cd : Intermediate. Harlow: Pearson Education Limited, 2008.

Cita MLA (8a ed.)

Hugues, John. Language Leader: Workbook with Key and Audio Cd : Intermediate. Pearson Education Limited, 2008.