HAYDEN. (1956). Mastering American engglish: A handbook-workbook ofessentials. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)HAYDEN. Mastering American Engglish: A Handbook-workbook Ofessentials. New York: Prentice-Hall, 1956.
Lua MLA (9ú heag.)HAYDEN. Mastering American Engglish: A Handbook-workbook Ofessentials. Prentice-Hall, 1956.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.