It's easy to cite LitCharts for use in academic papers and reports.
MLA
Tanner, Alexandra. "The Book of Unknown Americans." LitCharts. LitCharts LLC, 25 Jan 2018. Web. 19 Sep 2020.
Chicago
Tanner, Alexandra. "The Book of Unknown Americans." LitCharts LLC, January 25, 2018. Retrieved September 19, 2020. https://www.litcharts.com/lit/the-book-of-unknown-americans.