Royster, J. J., & Lester, M. (1996). Close Writer's choice grammar workbook. 11. Glencoe.
Lua i Stíl Chicago (17ú heag.)Royster, Jacqueline Jones, agus Mark Lester. Close Writer's Choice Grammar Workbook. 11. New York: Glencoe, 1996.
Lua MLA (8ú heag.)Royster, Jacqueline Jones, agus Mark Lester. Close Writer's Choice Grammar Workbook. 11. Glencoe, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.