APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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