Cambridge. (2022). Ielts academic with answers 13. Cambridge University Press.
Chicago-čujuhus (17. p.)Cambridge. Ielts Academic with Answers 13. Cambridge: Cambridge University Press, 2022.
MLA-čujuhus (9. p.)Cambridge. Ielts Academic with Answers 13. Cambridge University Press, 2022.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.