Conway, D., & Shirreffs, B. (2003). On Course for IELTS: Student's Book. Oxford University Press.
Chicago-čujuhus (17. p.)Conway, Darren, juo Brett Shirreffs. On Course for IELTS: Student's Book. Melbourne: Oxford University Press, 2003.
MLA-čujuhus (9. p.)Conway, Darren, juo Brett Shirreffs. On Course for IELTS: Student's Book. Oxford University Press, 2003.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.