James, C. Contrastive analysis (7a ed.).
Lua i Stíl Chicago (17ú heag.)James, Carl. Contrastive Analysis. 7a ed.
Lua MLA (8ú heag.)James, Carl. Contrastive Analysis. 7a ed.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.