Downie, M. (1999). Your Turn: Student's book 1 (1a. ed.). Richmond Publishing.
Lua i Stíl Chicago (17ú heag.)Downie, Michael. Your Turn: Student's Book 1. 1a. ed. Buenos Aires: Richmond Publishing, 1999.
Lua MLA (9ú heag.)Downie, Michael. Your Turn: Student's Book 1. 1a. ed. Richmond Publishing, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.