Cullen, P. (2007). Common mistakes at IELTS intermediate... and how to avoid them. Cambridge: CUP.
Chicago Style CitationCullen, Pauline. Common Mistakes At IELTS Intermediate... and How to Avoid Them. Cambridge: CUP, 2007.
MLA CitationCullen, Pauline. Common Mistakes At IELTS Intermediate... and How to Avoid Them. Cambridge: CUP, 2007.
Warning: These citations may not always be 100% accurate.