Charles Dickens. (2000). Hard Times (Norton Critical Editions) (3rd.). W. W. Norton & Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCharles Dickens. Hard Times (Norton Critical Editions). 3rd. W. W. Norton & Company, 2000.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCharles Dickens. Hard Times (Norton Critical Editions). 3rd. W. W. Norton & Company, 2000.
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