It's easy to cite LitCharts for use in academic papers and reports.
MLA
Kestler, Justin. "A Separate Peace." LitCharts. LitCharts LLC, 22 Jul 2013. Web. 9 Jul 2020.
Chicago
Kestler, Justin. "A Separate Peace." LitCharts LLC, July 22, 2013. Retrieved July 9, 2020. https://www.litcharts.com/lit/a-separate-peace.