Cita APA (7th ed.)

Julia Burchell. (2021). Cambridge Lower Secondary English Stage 9: Workbook. Collins.

Cita Chicago (17th ed.)

Julia Burchell. Cambridge Lower Secondary English Stage 9: Workbook. London: Collins, 2021.

Cita MLA (9th ed.)

Julia Burchell. Cambridge Lower Secondary English Stage 9: Workbook. Collins, 2021.