Hardwick, H. C. (1951). Words are important. C.S. Hammond & Co..
Lua i Stíl Chicago (17ú heag.)Hardwick, H. C. Words Are Important. New York: C.S. Hammond & Co., 1951.
Lua MLA (8ú heag.)Hardwick, H. C. Words Are Important. C.S. Hammond & Co., 1951.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.