APA-čujuhus (7. p.)
Jakeman, V., & Mcdowell, C. (2004). Step up to ielts: Personal study book with answers. CUP.
Chicago-čujuhus (17. p.)
Jakeman, Vanessa, juo Clare Mcdowell. Step Up to Ielts: Personal Study Book with Answers. Cambridge: CUP, 2004.
MLA-čujuhus (9. p.)
Jakeman, Vanessa, juo Clare Mcdowell. Step Up to Ielts: Personal Study Book with Answers. CUP, 2004.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.