Citazione Stile APA (7a Edizione)
Cullen, P. (2007). Common mistakes at IELTS Intermediate... and how to avoid them (First published 2007.). Cambridge University Press.
Citazione stile Chigago Style (17a edizione)
Cullen, Pauline. Common Mistakes at IELTS Intermediate... and How to Avoid Them. First published 2007. Cambridge: Cambridge University Press, 2007.
Citatione MLA (9a ed.)
Cullen, Pauline. Common Mistakes at IELTS Intermediate... and How to Avoid Them. First published 2007. Cambridge University Press, 2007.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.