Freeman, S. (1997). Written Communication in English. Orient Longman.
Lua i Stíl Chicago (17ú heag.)Freeman, Sarah. Written Communication in English. Chennai: Orient Longman, 1997.
Lua MLA (9ú heag.)Freeman, Sarah. Written Communication in English. Orient Longman, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.