Tims, N., Bell, J., Redston, C., & Cunningham, G. (2007). Face2face: Upper intermediate workbook. Cambridge University Press.
Chicagoスタイル(17版)引用形式Tims, Nicholas, Jan Bell, Chris Redston, , Gillie Cunningham. Face2face: Upper Intermediate Workbook. Cambridge: Cambridge University Press, 2007.
MLA(9版)引用形式Tims, Nicholas, et al. Face2face: Upper Intermediate Workbook. Cambridge University Press, 2007.
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