Citazione Stile APA (7a Edizione)

Doff, A., & Robinson, N. (2010). English unlimited: Starter. Self-study Pack. Workbook with DVD-ROM. A1. Cambridge University Press.

Citazione stile Chigago Style (17a edizione)

Doff, Adrian, e Nick Robinson. English Unlimited: Starter. Self-study Pack. Workbook with DVD-ROM. A1. Cambridge: Cambridge University Press, 2010.

Citatione MLA (9a ed.)

Doff, Adrian, e Nick Robinson. English Unlimited: Starter. Self-study Pack. Workbook with DVD-ROM. A1. Cambridge University Press, 2010.