Dyfyniad APA

Soars L. Liz, Soars J. John, & Wheeldon S. Sylvia. (2009). New Headway Upper-Intermediate: Workbook with key (3d ed.). New York, Oxford University Press, 2009.

Dyfyniad Arddull Chicago

Soars L. Liz, Soars J. John, and Wheeldon S. Sylvia. New Headway Upper-Intermediate: Workbook with Key. 3d ed. New York, Oxford University Press, 2009, 2009.

Dyfyniad MLA

Soars L. Liz, et al. New Headway Upper-Intermediate: Workbook with Key. 3d ed. New York, Oxford University Press, 2009, 2009.

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