AZAR, B. S. (1984). Basic English Grammar / Betty Schrampfer Azar. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)AZAR, Betty Schrampfer. Basic English Grammar / Betty Schrampfer Azar. Prentice Hall, 1984.
Lua MLA (8ú heag.)AZAR, Betty Schrampfer. Basic English Grammar / Betty Schrampfer Azar. Prentice Hall, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.