It's easy to cite LitCharts for use in academic papers and reports.
MLA
Tanner, Alexandra. "Sadako and the Thousand Paper Cranes." LitCharts. LitCharts LLC, 20 Apr 2018. Web. 26 Feb 2021.
Chicago
Tanner, Alexandra. "Sadako and the Thousand Paper Cranes." LitCharts LLC, April 20, 2018. Retrieved February 26, 2021. https://www.litcharts.com/lit/sadako-and-the-thousand-paper-cranes.