It's easy to cite LitCharts for use in academic papers and reports.
MLA
Sobel, Ben. "The Grapes of Wrath." LitCharts. LitCharts LLC, 17 Sep 2013. Web. 27 Oct 2020.
Chicago
Sobel, Ben. "The Grapes of Wrath." LitCharts LLC, September 17, 2013. Retrieved October 27, 2020. https://www.litcharts.com/lit/the-grapes-of-wrath.