APA citiranje

Soars, J., & Soars, L. (1993). Headway Upper-Intermediate: Workbook. Oxford: Oxford University Press.

Trích dẫn kiểu Chicago

Soars, John, và Liz Soars. Headway Upper-Intermediate: Workbook. Oxford: Oxford University Press, 1993.

MLA citiranje

Soars, John, và Liz Soars. Headway Upper-Intermediate: Workbook. Oxford: Oxford University Press, 1993.

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