Cita APA (7th ed.)

Tims, N., Bell, J., Redston, C., & Cunningham, G. (2007). Face2face: Upper intermediate workbook. Cambridge University Press.

Cita Chicago (17th ed.)

Tims, Nicholas, Jan Bell, Chris Redston, i Gillie Cunningham. Face2face: Upper Intermediate Workbook. Cambridge: Cambridge University Press, 2007.

Cita MLA (9th ed.)

Tims, Nicholas, et al. Face2face: Upper Intermediate Workbook. Cambridge University Press, 2007.