It's easy to cite LitCharts for use in academic papers and reports.
MLA
Kestler, Justin. "The Catcher in the Rye." LitCharts. LitCharts LLC, 22 Jul 2013. Web. 30 May 2020.
Chicago
Kestler, Justin. "The Catcher in the Rye." LitCharts LLC, July 22, 2013. Retrieved May 30, 2020. https://www.litcharts.com/lit/the-catcher-in-the-rye.