Jakeman, V., & McDowell, C. (2003). Cambridge practice tests for IELTS 1. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Jakeman, Vanessa, agus Clare McDowell. Cambridge Practice Tests for IELTS 1. Cambridge: Cambridge University Press, 2003.
Lua MLA (8ú heag.)Jakeman, Vanessa, agus Clare McDowell. Cambridge Practice Tests for IELTS 1. Cambridge University Press, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.