Johns, J. L., & Berglund, R. L. (2006). Fluency: Strategies & assessments (Third edition.). Kendall/Hunt Publishing Company.
Lua i Stíl Chicago (17ú heag.)Johns, Jerry L., agus Roberta L. Berglund. Fluency: Strategies & Assessments. Third edition. Dubuque, Iowa: Kendall/Hunt Publishing Company, 2006.
Lua MLA (8ú heag.)Johns, Jerry L., agus Roberta L. Berglund. Fluency: Strategies & Assessments. Third edition. Kendall/Hunt Publishing Company, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.