It's easy to cite LitCharts for use in academic papers and reports.
MLA
Winner, Kathryn. "Montana 1948." LitCharts. LitCharts LLC, 17 Jun 2015. Web. 26 May 2020.
Chicago
Winner, Kathryn. "Montana 1948." LitCharts LLC, June 17, 2015. Retrieved May 26, 2020. https://www.litcharts.com/lit/montana-1948.