Citazione Stile APA (7a Edizione)

Doff, A., Stirling, J., Thake, R., Brabben, C., & Lloyd, M. (2010). English unlimited: Starter Teacher's Pack. A1. Cambridge University Press.

Citazione stile Chigago Style (17a edizione)

Doff, Adrian, Johanna Stirling, Rachel Thake, Cathy Brabben, e Mark Lloyd. English Unlimited: Starter Teacher's Pack. A1. Cambridge: Cambridge University Press, 2010.

Citatione MLA (9a ed.)

Doff, Adrian, et al. English Unlimited: Starter Teacher's Pack. A1. Cambridge University Press, 2010.