APA (7th ed.) Citation

Dickens, C., Dickens, M., & Hogarth, G. (2011). The letters of Charles Dickens, 1833-1870 (Digital version.). Cambridge University Press. https://doi.org/10.1017/CBO9781139109239

Chicago Style (17th ed.) Citation

Dickens, Charles, Mamie Dickens, and Georgina Hogarth. The Letters of Charles Dickens, 1833-1870. Digital version. Oxford: Cambridge University Press, 2011. https://doi.org/10.1017/CBO9781139109239.

MLA (9th ed.) Citation

Dickens, Charles, et al. The Letters of Charles Dickens, 1833-1870. Digital version. Cambridge University Press, 2011. https://doi.org/10.1017/CBO9781139109239.