Citazione APA

Cullen, P. (2014). The official Cambridge guide to IELTS for academic &​ general training: Student's book with answers. Cambridge: Cambridge University Press.

Stile di citazione Chicago

Cullen, Pauline. The Official Cambridge Guide to IELTS for Academic &​ General Training: Student's Book With Answers. Cambridge: Cambridge University Press, 2014.

Citazione MLA

Cullen, Pauline. The Official Cambridge Guide to IELTS for Academic &​ General Training: Student's Book With Answers. Cambridge: Cambridge University Press, 2014.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.