APA (7th ed.) Citation

Hardwick, M., & Hardwick, M. (1965). The Charles Dickens companion. Murray.

Chicago Style (17th ed.) Citation

Hardwick, Michael, and Mollie Hardwick. The Charles Dickens Companion. London: Murray, 1965.

MLA (9th ed.) Citation

Hardwick, Michael, and Mollie Hardwick. The Charles Dickens Companion. Murray, 1965.