Hardy, B. The change of heart in Dickens's novels: Barbara Hardy. Dickens : a collection of critical essays.(1967).
Chicago-viite (17. p.)Hardy, Barbara. "The Change of Heart in Dickens's Novels: Barbara Hardy." Dickens : A Collection of Critical Essays.(1967) .
MLA-viite (8. p.)Hardy, Barbara. "The Change of Heart in Dickens's Novels: Barbara Hardy." Dickens : A Collection of Critical Essays.(1967), .
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.