It's easy to cite LitCharts for use in academic papers and reports.
MLA
Schmidtke, Emma. "Lady Audley’s Secret." LitCharts. LitCharts LLC, 3 Aug 2018. Web. 8 Mar 2021.
Chicago
Schmidtke, Emma. "Lady Audley’s Secret." LitCharts LLC, August 3, 2018. Retrieved March 8, 2021. https://www.litcharts.com/lit/lady-audley-s-secret.