Cita APA

Soars, J., & Soars, L. (1993). Headway Advanced: Workbook. Oxford: Oxford University Press.

Citación estilo Chicago

Soars, John, y Liz Soars. Headway Advanced: Workbook. Oxford: Oxford University Press, 1993.

Cita MLA

Soars, John, y Liz Soars. Headway Advanced: Workbook. Oxford: Oxford University Press, 1993.

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