Campbell, D. S. (1995). Better sentence-writing in 30 minutes a day (Trade ed.). Career Press.
Lua i Stíl Chicago (17ú heag.)Campbell, Dianna S. Better Sentence-writing in 30 Minutes a Day. Trade ed. Franklin Lakes, N.J: Career Press, 1995.
Lua MLA (9ú heag.)Campbell, Dianna S. Better Sentence-writing in 30 Minutes a Day. Trade ed. Career Press, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.