higgins, M. (1987). intermediate grammar workbook 2. Longman.
Lua i Stíl Chicago (17ú heag.)higgins, MUriel. Intermediate Grammar Workbook 2. Longman, 1987.
Lua MLA (8ú heag.)higgins, MUriel. Intermediate Grammar Workbook 2. Longman, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.