It's easy to cite LitCharts for use in academic papers and reports.
MLA
Smith, Rosa. "The Secret Life of Walter Mitty." LitCharts. LitCharts LLC, 17 Jun 2015. Web. 24 Jan 2021.
Chicago
Smith, Rosa. "The Secret Life of Walter Mitty." LitCharts LLC, June 17, 2015. Retrieved January 24, 2021. https://www.litcharts.com/lit/the-secret-life-of-walter-mitty.