Richards, J. C. (2003). New interchange: English for internaional communication intro workbook. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Richards, Jack C. New Interchange: English for Internaional Communication Intro Workbook. Cambridge: Cambridge University Press, 2003.
Lua MLA (9ú heag.)Richards, Jack C. New Interchange: English for Internaional Communication Intro Workbook. Cambridge University Press, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.