Dunton, L., & Kelley, A. H. (1911). A graded course in English: English grammar and composition. Thompson Brown co. (Johnson, Blagden & McTurnan).
Lua i Stíl Chicago (17ú heag.)Dunton, Larkin, agus Augustus Hill Kelley. A Graded Course in English: English Grammar and Composition. New York, Chicago [etc.]: Thompson Brown co. (Johnson, Blagden & McTurnan), 1911.
Lua MLA (8ú heag.)Dunton, Larkin, agus Augustus Hill Kelley. A Graded Course in English: English Grammar and Composition. Thompson Brown co. (Johnson, Blagden & McTurnan), 1911.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.