Wilcox, W. H. (1914). Daily English lessons. J.B. Lippincott Company.
Lua i Stíl Chicago (17ú heag.)Wilcox, Willis H. Daily English Lessons. Philadelphia ; London: J.B. Lippincott Company, 1914.
Lua MLA (8ú heag.)Wilcox, Willis H. Daily English Lessons. J.B. Lippincott Company, 1914.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.