RUTHERFORD, W. E. (1975). Modern english 1.-- Ed. 2. Harcourt Brace Jovanovich.
Lua i Stíl Chicago (17ú heag.)RUTHERFORD, William E. Modern English 1.-- Ed. 2. New York: Harcourt Brace Jovanovich, 1975.
Lua MLA (9ú heag.)RUTHERFORD, William E. Modern English 1.-- Ed. 2. Harcourt Brace Jovanovich, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.