It's easy to cite LitCharts for use in academic papers and reports.
MLA
Fredericksen, Erik. "Robinson Crusoe." LitCharts. LitCharts LLC, 5 Jan 2014. Web. 6 Jul 2020.
Chicago
Fredericksen, Erik. "Robinson Crusoe." LitCharts LLC, January 5, 2014. Retrieved July 6, 2020. https://www.litcharts.com/lit/robinson-crusoe.