It's easy to cite LitCharts for use in academic papers and reports.
MLA
Raphel, Adrienne. "Extremely Loud and Incredibly Close." LitCharts. LitCharts LLC, 24 Jul 2015. Web. 5 Jul 2020.
Chicago
Raphel, Adrienne. "Extremely Loud and Incredibly Close." LitCharts LLC, July 24, 2015. Retrieved July 5, 2020. https://www.litcharts.com/lit/extremely-loud-and-incredibly-close.