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. 19 Apr 2021.
Chicago
Celona, Tina. "Ethan Frome." LitCharts LLC, July 22, 2013. Retrieved April 19, 2021. https://www.litcharts.com/lit/ethan-frome.