Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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