It's easy to cite LitCharts for use in academic papers and reports.
MLA
Seresin, Indiana. "The Underground Railroad." LitCharts. LitCharts LLC, 10 Apr 2017. Web. 24 Jan 2021.
Chicago
Seresin, Indiana. "The Underground Railroad." LitCharts LLC, April 10, 2017. Retrieved January 24, 2021. https://www.litcharts.com/lit/the-underground-railroad.