RICHARDS, J. C. (1997). New Interchange: English for international communication; student's book 2. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)RICHARDS, Jack C. New Interchange: English for International Communication; Student's Book 2. Cambridge University Press, 1997.
Lua MLA (8ú heag.)RICHARDS, Jack C. New Interchange: English for International Communication; Student's Book 2. Cambridge University Press, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.