Cita APA (7a ed.)

Clare, A., & Wilson, J. J. (2012). Speakout: Pre-intermediate (1a ed.). Pearson.

Cita Chicago Style (17a ed.)

Clare, Antonia, y J. J. Wilson. Speakout: Pre-intermediate. 1a ed. Harlow: Pearson, 2012.

Cita MLA (8a ed.)

Clare, Antonia, y J. J. Wilson. Speakout: Pre-intermediate. 1a ed. Pearson, 2012.