APA-ийн эшлэл(7 дахь хэвлэлт)
Stillman, H., & Dickens, C. (2003). Hard times for these times: Based on the novel by Charles Dickens. Northwestern University Press.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)
Stillman, Heidi, ба Charles Dickens. Hard Times for These Times: Based on the Novel by Charles Dickens. Evanston, Ill.: Northwestern University Press, 2003.
MLA -ийн эшлэл (9 дэх хэвлэлт)
Stillman, Heidi, ба Charles Dickens. Hard Times for These Times: Based on the Novel by Charles Dickens. Northwestern University Press, 2003.
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