Stanley, N. (1984). The best toefl test book(CD). Addison-Wesley.
Lua i Stíl Chicago (17ú heag.)Stanley, Nancy. The Best Toefl Test Book(CD). Addison-Wesley, 1984.
Lua MLA (8ú heag.)Stanley, Nancy. The Best Toefl Test Book(CD). Addison-Wesley, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.