Hopkins, A., Vivier, M. d., & Potter, J. (2000). Longman for Polimodal. Longman.
Lua i Stíl Chicago (17ú heag.)Hopkins, Andy, Madeleine du Vivier, agus Jocelyn Potter. Longman for Polimodal. England: Longman, 2000.
Lua MLA (9ú heag.)Hopkins, Andy, et al. Longman for Polimodal. Longman, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.