Richards, J. C. New Interchange: English for international communication. Student's book 2A.
Lua i Stíl Chicago (17ú heag.)Richards, Jack C. New Interchange: English for International Communication. Student's Book 2A.
Lua MLA (8ú heag.)Richards, Jack C. New Interchange: English for International Communication. Student's Book 2A.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.