APA citiranje

Black, M. (2006). Objective IELTS. Advanced: Self-study student's book. Cambridge: Cambridge University Press.

Trích dẫn kiểu Chicago

Black, Michael. Objective IELTS. Advanced: Self-study Student's Book. Cambridge: Cambridge University Press, 2006.

MLA citiranje

Black, Michael. Objective IELTS. Advanced: Self-study Student's Book. Cambridge: Cambridge University Press, 2006.