Tayfoor S. Susanne. (2007). Common mistakes at First Certificate ... and how to avoid them (6th ed.). Cambridge, Cambridge University Press, 2007.
Citazione stile Chigago Style (17a edizione)Tayfoor S. Susanne. Common Mistakes at First Certificate ... and How to Avoid Them. 6th ed. Cambridge, Cambridge University Press, 2007, 2007.
Citatione MLA (9a ed.)Tayfoor S. Susanne. Common Mistakes at First Certificate ... and How to Avoid Them. 6th ed. Cambridge, Cambridge University Press, 2007, 2007.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.