Murphy, R., & Altman, R. Grammar in use. Reference and practice for intermediate students of English.
Lua i Stíl Chicago (17ú heag.)Murphy, Raymond, agus Roann Altman. Grammar in Use. Reference and Practice for Intermediate Students of English.
Lua MLA (8ú heag.)Murphy, Raymond, agus Roann Altman. Grammar in Use. Reference and Practice for Intermediate Students of English.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.