It's easy to cite LitCharts for use in academic papers and reports.
MLA
Celona, Tina. "Ethan Frome." LitCharts. LitCharts LLC, 22 Jul 2013. Web. 30 Nov 2020.
Chicago
Celona, Tina. "Ethan Frome." LitCharts LLC, July 22, 2013. Retrieved November 30, 2020. https://www.litcharts.com/lit/ethan-frome.