Gorrell, D., & Fowler, H. R. (2001). The Little, Brown workbook (8th ed.). Longman.
Lua i Stíl Chicago (17ú heag.)Gorrell, Donna, agus H. Ramsey Fowler. The Little, Brown Workbook. 8th ed. New York: Longman, 2001.
Lua MLA (9ú heag.)Gorrell, Donna, agus H. Ramsey Fowler. The Little, Brown Workbook. 8th ed. Longman, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.