Cita APA

Harris, M., & Sikorzynska, A. (2012). Choices: Pre-intermediate student´s book. Pearson.

Citación estilo Chicago

Harris, Michael, and Anna Sikorzynska. Choices: Pre-intermediate Student´s Book. Londres: Pearson, 2012.

Cita MLA

Harris, Michael, and Anna Sikorzynska. Choices: Pre-intermediate Student´s Book. Londres: Pearson, 2012.