Norman, D., Levihn, U., & Hedenquist, J. A. (2002). Communicative ideas: An approach with classroom activities. Thomson/Heinle.
Lua i Stíl Chicago (17ú heag.)Norman, David, Ulf Levihn, agus Jan Anders Hedenquist. Communicative Ideas: An Approach with Classroom Activities. Australia: Thomson/Heinle, 2002.
Lua MLA (9ú heag.)Norman, David, et al. Communicative Ideas: An Approach with Classroom Activities. Thomson/Heinle, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.