APA (7th ed.) Citation

Marks, A., & Sims, L. (2010). A christmas carol. Usborne Publishing Ltd..

Chicago Style (17th ed.) Citation

Marks, Alan, and Lesley Sims. A Christmas Carol. London: Usborne Publishing Ltd., 2010.

MLA (9th ed.) Citation

Marks, Alan, and Lesley Sims. A Christmas Carol. Usborne Publishing Ltd., 2010.