Cita APA

Fricker, R., & Michalowski, B. (2017). Focus 1: Workbook. Pearson.

Citación estilo Chicago

Fricker, Rod, and Bartosz Michalowski. Focus 1: Workbook. Edimburgo: Pearson, 2017.

Cita MLA

Fricker, Rod, and Bartosz Michalowski. Focus 1: Workbook. Edimburgo: Pearson, 2017.