It's easy to cite LitCharts for use in academic papers and reports.
MLA
Sobel, Ben. "Atonement." LitCharts. LitCharts LLC, 11 Aug 2014. Web. 17 Jun 2021.
Chicago
Sobel, Ben. "Atonement." LitCharts LLC, August 11, 2014. Retrieved June 17, 2021. https://www.litcharts.com/lit/atonement.