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. 25 Sep 2020.
Chicago
Seresin, Indiana. "The Underground Railroad." LitCharts LLC, April 10, 2017. Retrieved September 25, 2020. https://www.litcharts.com/lit/the-underground-railroad.