Hayden, R. E. (1956). Mastering American English: A handbook-workbook of essentials. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Hayden, Rebecca E. Mastering American English: A Handbook-workbook of Essentials. Englewood Cliffs, N. J: Prentice-Hall, 1956.
Lua MLA (9ú heag.)Hayden, Rebecca E. Mastering American English: A Handbook-workbook of Essentials. Prentice-Hall, 1956.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.