ASSOCIATION, R. D. (1972). Write Better, Speak Better. The Reader's Digest Association, Inc.
Lua i Stíl Chicago (17ú heag.)ASSOCIATION, READERS DIGEST. Write Better, Speak Better. The Reader's Digest Association, Inc, 1972.
Lua MLA (8ú heag.)ASSOCIATION, READERS DIGEST. Write Better, Speak Better. The Reader's Digest Association, Inc, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.