APA (7th ed.) Citation

University of Cambridge. ESOL Examinations, IELTS Australia, & British Council. (2010). Official IELTS practice materials 2. University of Cambridge, ESOL Examinations.

Chicago Style (17th ed.) Citation

University of Cambridge. ESOL Examinations, IELTS Australia, and British Council. Official IELTS Practice Materials 2. Cambridge, U.K.: University of Cambridge, ESOL Examinations, 2010.

MLA (9th ed.) Citation

University of Cambridge. ESOL Examinations, et al. Official IELTS Practice Materials 2. University of Cambridge, ESOL Examinations, 2010.