It's easy to cite LitCharts for use in academic papers and reports.
MLA
Patterson-White, Sarah. "The Killer Angels." LitCharts. LitCharts LLC, 28 Nov 2018. Web. 22 Jan 2021.
Chicago
Patterson-White, Sarah. "The Killer Angels." LitCharts LLC, November 28, 2018. Retrieved January 22, 2021. https://www.litcharts.com/lit/the-killer-angels.