Cita APA (7a ed.)

Clare, A., & Wilson, J. J. (2018). Speakout: Advanced (2nd ed.). Pearson Education Limited.

Cita Chicago Style (17a ed.)

Clare, Antonia, y J. J. Wilson. Speakout: Advanced. 2nd ed. Harlow, Essex: Pearson Education Limited, 2018.

Cita MLA (9a ed.)

Clare, Antonia, y J. J. Wilson. Speakout: Advanced. 2nd ed. Pearson Education Limited, 2018.