Trimbur, J. (2005). The call to write. Longman.
Lua i Stíl Chicago (17ú heag.)Trimbur, John. The Call to Write. Longman, 2005.
Lua MLA (9ú heag.)Trimbur, John. The Call to Write. Longman, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.