Lua APA (7ú heag.)
Everyday English for Technical Students (Engineering-Technological Department): учебник.
Lua i Stíl Chicago (17ú heag.)Everyday English for Technical Students (Engineering-Technological Department): учебник.
Lua MLA (8ú heag.)Everyday English for Technical Students (Engineering-Technological Department): учебник.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.