(2006). Collins Italian grammar. HarperCollins.
Lua i Stíl Chicago (17ú heag.)Collins Italian Grammar. Glasgow: HarperCollins, 2006.
Lua MLA (9ú heag.)Collins Italian Grammar. HarperCollins, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.