Goff, P., Lewis, G., & Crozier, G. (2001). Test your e-skills. Hodder & Stoughton.
Lua i Stíl Chicago (17ú heag.)Goff, Philip, Gsreth Lewis, agus Gene Crozier. Test Your E-skills. London: Hodder & Stoughton, 2001.
Lua MLA (8ú heag.)Goff, Philip, et al. Test Your E-skills. Hodder & Stoughton, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.