Charles Dickens. (2000). Hard Times (Norton Critical Editions) (3rd.). W. W. Norton & Company.
Lua i Stíl Chicago (17ú heag.)Charles Dickens. Hard Times (Norton Critical Editions). 3rd. W. W. Norton & Company, 2000.
Lua MLA (9ú heag.)Charles Dickens. Hard Times (Norton Critical Editions). 3rd. W. W. Norton & Company, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.