It's easy to cite LitCharts for use in academic papers and reports.
MLA
Beaumont, Lily. "David Copperfield." LitCharts. LitCharts LLC, 7 Oct 2018. Web. 18 Jan 2021.
Chicago
Beaumont, Lily. "David Copperfield." LitCharts LLC, October 7, 2018. Retrieved January 18, 2021. https://www.litcharts.com/lit/david-copperfield.