It's easy to cite LitCharts for use in academic papers and reports.
MLA
Lucas, Julian. "Candide." LitCharts. LitCharts LLC, 16 Sep 2013. Web. 19 Jan 2021.
Chicago
Lucas, Julian. "Candide." LitCharts LLC, September 16, 2013. Retrieved January 19, 2021. https://www.litcharts.com/lit/candide.