APA (7 वां संस्करण) प्रशस्ति पत्र

Hardy, B. The change of heart in Dickens's novels: Barbara Hardy. Dickens : a collection of critical essays.(1967).

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Hardy, Barbara. "The Change of Heart in Dickens's Novels: Barbara Hardy." Dickens : A Collection of Critical Essays.(1967) .

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Hardy, Barbara. "The Change of Heart in Dickens's Novels: Barbara Hardy." Dickens : A Collection of Critical Essays.(1967), .