Cita APA (7a ed.)

Cambridge. (2021). IELTS Academic 16 (1st.). Cambridge University Press.

Cita Chicago Style (17a ed.)

Cambridge. IELTS Academic 16. 1st. Cambridge: Cambridge University Press, 2021.

Cita MLA (9a ed.)

Cambridge. IELTS Academic 16. 1st. Cambridge University Press, 2021.