Cita APA (7th ed.)

Walter, E., & Woodford, K. (2022). Keep it real! A2+Workbook. Santillana.

Cita Chicago (17th ed.)

Walter, Elizabeth, i Kate Woodford. Keep It Real! A2+Workbook. Buenos Aires: Santillana, 2022.

Cita MLA (9th ed.)

Walter, Elizabeth, i Kate Woodford. Keep It Real! A2+Workbook. Santillana, 2022.