APA ציטוט

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

Trích dẫn kiểu Chicago

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

ציטוט MLA

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