Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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

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